#include <sys/types.h>
#include <sys/time.h>
#include "asterisk/compiler.h"
#include "asterisk/endian.h"
#include "asterisk/linkedlists.h"
Go to the source code of this file.
Data Structures | |
struct | ast_codec_pref |
struct | ast_format_list |
Definition of supported media formats (codecs). More... | |
struct | ast_frame |
Data structure associated with a single frame of data. More... | |
struct | ast_option_header |
struct | oprmode |
Defines | |
#define | AST_FORMAT_ADPCM (1 << 5) |
#define | AST_FORMAT_ALAW (1 << 3) |
#define | AST_FORMAT_AUDIO_MASK ((1 << 16)-1) |
#define | AST_FORMAT_G722 (1 << 12) |
#define | AST_FORMAT_G723_1 (1 << 0) |
#define | AST_FORMAT_G726 (1 << 11) |
#define | AST_FORMAT_G726_AAL2 (1 << 4) |
#define | AST_FORMAT_G729A (1 << 8) |
#define | AST_FORMAT_GSM (1 << 1) |
#define | AST_FORMAT_H261 (1 << 18) |
#define | AST_FORMAT_H263 (1 << 19) |
#define | AST_FORMAT_H263_PLUS (1 << 20) |
#define | AST_FORMAT_H264 (1 << 21) |
#define | AST_FORMAT_ILBC (1 << 10) |
#define | AST_FORMAT_JPEG (1 << 16) |
#define | AST_FORMAT_LPC10 (1 << 7) |
#define | AST_FORMAT_MAX_AUDIO (1 << 15) |
#define | AST_FORMAT_MAX_VIDEO (1 << 24) |
#define | AST_FORMAT_PNG (1 << 17) |
#define | AST_FORMAT_SLINEAR (1 << 6) |
#define | AST_FORMAT_SPEEX (1 << 9) |
#define | AST_FORMAT_ULAW (1 << 2) |
#define | AST_FORMAT_VIDEO_MASK (((1 << 25)-1) & ~(AST_FORMAT_AUDIO_MASK)) |
#define | ast_frame_byteswap_be(fr) do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data, __f->data, __f->samples); } while(0) |
#define | ast_frame_byteswap_le(fr) do { ; } while(0) |
#define | AST_FRAME_DTMF AST_FRAME_DTMF_END |
#define | AST_FRAME_SET_BUFFER(fr, _base, _ofs, _datalen) |
#define | ast_frfree(fr) ast_frame_free(fr, 1) |
#define | AST_FRIENDLY_OFFSET 64 |
#define | AST_HTML_BEGIN 4 |
#define | AST_HTML_DATA 2 |
#define | AST_HTML_END 8 |
#define | AST_HTML_LDCOMPLETE 16 |
#define | AST_HTML_LINKREJECT 20 |
#define | AST_HTML_LINKURL 18 |
#define | AST_HTML_NOSUPPORT 17 |
#define | AST_HTML_UNLINK 19 |
#define | AST_HTML_URL 1 |
#define | AST_MALLOCD_DATA (1 << 1) |
#define | AST_MALLOCD_HDR (1 << 0) |
#define | AST_MALLOCD_SRC (1 << 2) |
#define | AST_MIN_OFFSET 32 |
#define | AST_MODEM_T38 1 |
#define | AST_MODEM_V150 2 |
#define | AST_OPTION_AUDIO_MODE 4 |
#define | AST_OPTION_ECHOCAN 8 |
#define | AST_OPTION_FLAG_ACCEPT 1 |
#define | AST_OPTION_FLAG_ANSWER 5 |
#define | AST_OPTION_FLAG_QUERY 4 |
#define | AST_OPTION_FLAG_REJECT 2 |
#define | AST_OPTION_FLAG_REQUEST 0 |
#define | AST_OPTION_FLAG_WTF 6 |
#define | AST_OPTION_OPRMODE 7 |
#define | AST_OPTION_RELAXDTMF 3 |
#define | AST_OPTION_RXGAIN 6 |
#define | AST_OPTION_TDD 2 |
#define | AST_OPTION_TONE_VERIFY 1 |
#define | AST_OPTION_TXGAIN 5 |
#define | ast_smoother_feed(s, f) __ast_smoother_feed(s, f, 0) |
#define | ast_smoother_feed_be(s, f) __ast_smoother_feed(s, f, 1) |
#define | ast_smoother_feed_le(s, f) __ast_smoother_feed(s, f, 0) |
#define | AST_SMOOTHER_FLAG_BE (1 << 1) |
#define | AST_SMOOTHER_FLAG_G729 (1 << 0) |
Enumerations | |
enum | ast_control_frame_type { AST_CONTROL_HANGUP = 1, AST_CONTROL_RING = 2, AST_CONTROL_RINGING = 3, AST_CONTROL_ANSWER = 4, AST_CONTROL_BUSY = 5, AST_CONTROL_TAKEOFFHOOK = 6, AST_CONTROL_OFFHOOK = 7, AST_CONTROL_CONGESTION = 8, AST_CONTROL_FLASH = 9, AST_CONTROL_WINK = 10, AST_CONTROL_OPTION = 11, AST_CONTROL_RADIO_KEY = 12, AST_CONTROL_RADIO_UNKEY = 13, AST_CONTROL_PROGRESS = 14, AST_CONTROL_PROCEEDING = 15, AST_CONTROL_HOLD = 16, AST_CONTROL_UNHOLD = 17, AST_CONTROL_VIDUPDATE = 18 } |
enum | ast_frame_type { AST_FRAME_DTMF_END = 1, AST_FRAME_VOICE, AST_FRAME_VIDEO, AST_FRAME_CONTROL, AST_FRAME_NULL, AST_FRAME_IAX, AST_FRAME_TEXT, AST_FRAME_IMAGE, AST_FRAME_HTML, AST_FRAME_CNG, AST_FRAME_MODEM, AST_FRAME_DTMF_BEGIN } |
Frame types. More... | |
Functions | |
int | __ast_smoother_feed (struct ast_smoother *s, struct ast_frame *f, int swap) |
char * | ast_codec2str (int codec) |
Get a name from a format Gets a name from a format. | |
int | ast_codec_choose (struct ast_codec_pref *pref, int formats, int find_best) |
Select the best audio format according to preference list from supplied options. If "find_best" is non-zero then if nothing is found, the "Best" format of the format list is selected, otherwise 0 is returned. | |
int | ast_codec_get_len (int format, int samples) |
Returns the number of bytes for the number of samples of the given format. | |
int | ast_codec_get_samples (struct ast_frame *f) |
Returns the number of samples contained in the frame. | |
static int | ast_codec_interp_len (int format) |
Gets duration in ms of interpolation frame for a format. | |
int | ast_codec_pref_append (struct ast_codec_pref *pref, int format) |
Append a audio codec to a preference list, removing it first if it was already there. | |
void | ast_codec_pref_convert (struct ast_codec_pref *pref, char *buf, size_t size, int right) |
Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string. | |
struct ast_format_list | ast_codec_pref_getsize (struct ast_codec_pref *pref, int format) |
Get packet size for codec. | |
int | ast_codec_pref_index (struct ast_codec_pref *pref, int index) |
Codec located at a particular place in the preference index See Audio Codec Preferences. | |
void | ast_codec_pref_init (struct ast_codec_pref *pref) |
Initialize an audio codec preference to "no preference" See Audio Codec Preferences. | |
void | ast_codec_pref_remove (struct ast_codec_pref *pref, int format) |
Remove audio a codec from a preference list. | |
int | ast_codec_pref_setsize (struct ast_codec_pref *pref, int format, int framems) |
Set packet size for codec. | |
int | ast_codec_pref_string (struct ast_codec_pref *pref, char *buf, size_t size) |
Dump audio codec preference list into a string. | |
int | ast_frame_adjust_volume (struct ast_frame *f, int adjustment) |
Adjusts the volume of the audio samples contained in a frame. | |
void | ast_frame_dump (const char *name, struct ast_frame *f, char *prefix) |
struct ast_frame * | ast_frame_enqueue (struct ast_frame *head, struct ast_frame *f, int maxlen, int dupe) |
Appends a frame to the end of a list of frames, truncating the maximum length of the list. | |
void | ast_frame_free (struct ast_frame *fr, int cache) |
Requests a frame to be allocated. | |
int | ast_frame_slinear_sum (struct ast_frame *f1, struct ast_frame *f2) |
Sums two frames of audio samples. | |
struct ast_frame * | ast_frdup (const struct ast_frame *fr) |
Copies a frame. | |
struct ast_frame * | ast_frisolate (struct ast_frame *fr) |
Makes a frame independent of any static storage. | |
struct ast_format_list * | ast_get_format_list (size_t *size) |
struct ast_format_list * | ast_get_format_list_index (int index) |
int | ast_getformatbyname (const char *name) |
Gets a format from a name. | |
char * | ast_getformatname (int format) |
Get the name of a format. | |
char * | ast_getformatname_multiple (char *buf, size_t size, int format) |
Get the names of a set of formats. | |
void | ast_parse_allow_disallow (struct ast_codec_pref *pref, int *mask, const char *list, int allowing) |
Parse an "allow" or "deny" line in a channel or device configuration and update the capabilities mask and pref if provided. Video codecs are not added to codec preference lists, since we can not transcode. | |
void | ast_smoother_free (struct ast_smoother *s) |
int | ast_smoother_get_flags (struct ast_smoother *smoother) |
struct ast_smoother * | ast_smoother_new (int bytes) |
struct ast_frame * | ast_smoother_read (struct ast_smoother *s) |
void | ast_smoother_reset (struct ast_smoother *s, int bytes) |
void | ast_smoother_set_flags (struct ast_smoother *smoother, int flags) |
int | ast_smoother_test_flag (struct ast_smoother *s, int flag) |
void | ast_swapcopy_samples (void *dst, const void *src, int samples) |
Variables | |
struct ast_frame | ast_null_frame |
Definition in file frame.h.
#define AST_FORMAT_ADPCM (1 << 5) |
ADPCM (IMA)
Definition at line 230 of file frame.h.
Referenced by adpcmtolin_sample(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), convertcap(), vox_read(), and vox_write().
#define AST_FORMAT_ALAW (1 << 3) |
Raw A-law data (G.711)
Definition at line 226 of file frame.h.
Referenced by alawtolin_sample(), alawtoulaw_sample(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_process(), cb_events(), codec_ast2skinny(), codec_skinny2ast(), convertcap(), misdn_read(), misdn_set_opt_exec(), oh323_rtp_read(), pcm_seek(), pcm_write(), read_config(), sms_exec(), sms_generate(), zt_new(), zt_read(), and zt_write().
#define AST_FORMAT_AUDIO_MASK ((1 << 16)-1) |
Maximum audio mask
Definition at line 248 of file frame.h.
Referenced by add_sdp(), ast_best_codec(), ast_codec_choose(), ast_openstream_full(), ast_parse_allow_disallow(), ast_request_with_uniqueid(), ast_translate_available_formats(), ast_translator_best_choice(), begin_dial(), func_channel_read(), gtalk_rtp_read(), process_sdp(), set_format(), sip_call(), sip_rtp_read(), and sip_write().
#define AST_FORMAT_G722 (1 << 12) |
G.722
Definition at line 244 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), and convertcap().
#define AST_FORMAT_G723_1 (1 << 0) |
G.723.1 compression
Definition at line 220 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_samples(), ast_rtp_write(), codec_ast2skinny(), codec_skinny2ast(), convertcap(), g723_read(), g723_write(), load_module(), phone_request(), phone_setup(), phone_write(), zap_destroy(), and zap_translate().
#define AST_FORMAT_G726 (1 << 11) |
ADPCM (G.726, 32kbps, RFC3551 codeword packing)
Definition at line 242 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_rtp_set_rtpmap_type(), g726_read(), g726_write(), and g726tolin_sample().
#define AST_FORMAT_G726_AAL2 (1 << 4) |
ADPCM (G.726, 32kbps, AAL2 codeword packing)
Definition at line 228 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_rtp_lookup_mime_subtype(), ast_rtp_set_rtpmap_type(), codec_ast2skinny(), and codec_skinny2ast().
#define AST_FORMAT_G729A (1 << 8) |
G.729A audio
Definition at line 236 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), codec_ast2skinny(), codec_skinny2ast(), convertcap(), g729_read(), g729_write(), zap_destroy(), zap_framein(), and zap_translate().
#define AST_FORMAT_GSM (1 << 1) |
GSM compression
Definition at line 222 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), convertcap(), gsm_read(), gsm_write(), gsmtolin_sample(), wav_read(), and wav_write().
#define AST_FORMAT_H261 (1 << 18) |
H.261 Video
Definition at line 254 of file frame.h.
Referenced by codec_ast2skinny(), and codec_skinny2ast().
#define AST_FORMAT_H263 (1 << 19) |
H.263 Video
Definition at line 256 of file frame.h.
Referenced by codec_ast2skinny(), codec_skinny2ast(), h263_read(), and h263_write().
#define AST_FORMAT_H264 (1 << 21) |
#define AST_FORMAT_ILBC (1 << 10) |
iLBC Free Compression
Definition at line 240 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_codec_interp_len(), convertcap(), ilbc_read(), and ilbc_write().
#define AST_FORMAT_JPEG (1 << 16) |
JPEG Images
Definition at line 250 of file frame.h.
Referenced by jpeg_read_image(), and jpeg_write_image().
#define AST_FORMAT_LPC10 (1 << 7) |
LPC10, 180 samples/frame
Definition at line 234 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), and lpc10tolin_sample().
#define AST_FORMAT_MAX_AUDIO (1 << 15) |
Maximum audio format
Definition at line 246 of file frame.h.
Referenced by add_sdp(), ast_closestream(), ast_filehelper(), ast_openvstream(), ast_playstream(), ast_rtp_raw_write(), ast_rtp_read(), ast_translate_available_formats(), ast_writestream(), oh323_request(), phone_read(), sip_request_call(), skinny_request(), transmit_connect_with_sdp(), and transmit_modify_with_sdp().
#define AST_FORMAT_MAX_VIDEO (1 << 24) |
Maximum video format
Definition at line 262 of file frame.h.
Referenced by add_sdp(), ast_openvstream(), and ast_translate_available_formats().
#define AST_FORMAT_PNG (1 << 17) |
#define AST_FORMAT_SLINEAR (1 << 6) |
Raw 16-bit Signed Linear (8000 Hz) PCM
Definition at line 232 of file frame.h.
Referenced by __ast_play_and_record(), __ast_register_translator(), action_originate(), agent_new(), alsa_new(), alsa_read(), alsa_request(), ast_best_codec(), ast_channel_make_compatible(), ast_channel_spy_add(), ast_channel_start_silence_generator(), ast_channel_whisper_stop(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_call_progress(), ast_dsp_digitdetect(), ast_dsp_process(), ast_dsp_silence(), ast_frame_adjust_volume(), ast_frame_slinear_sum(), ast_rtp_read(), ast_send_message(), ast_slinfactory_feed(), ast_write(), attempt_reconnect(), attempt_thread(), background_detect_exec(), build_conf(), channel_spy(), chanspy_exec(), chanspychan_exec(), conf_run(), connect_link(), dictate_exec(), do_waiting(), eagi_exec(), extenspy_exec(), fast_originate(), handle_recordfile(), iax_frame_wrap(), ices_exec(), isAnsweringMachine(), launch_monitor_thread(), linear_alloc(), linear_generator(), lintoadpcm_sample(), lintoalaw_sample(), lintog726_sample(), lintogsm_sample(), lintolpc10_sample(), lintospeex_sample(), lintoulaw_sample(), load_module(), load_moh_classes(), measurenoise(), misdn_set_opt_exec(), moh_class_malloc(), mp3_exec(), nbs_request(), nbs_xwrite(), NBScat_exec(), ogg_vorbis_read(), ogg_vorbis_write(), oh323_rtp_read(), orig_app(), orig_exten(), oss_new(), oss_read(), oss_request(), parkandannounce_exec(), phone_new(), phone_read(), phone_request(), phone_setup(), phone_write(), playtones_alloc(), playtones_generator(), queue_frame_to_spies(), read_config(), record_exec(), rpt(), rpt_call(), rpt_exec(), rpt_tele_thread(), run_agi(), send_waveform_to_channel(), silence_generator_generate(), slinear_read(), slinear_write(), sms_exec(), sms_generate(), socket_process(), speech_background(), speech_create(), tonepair_alloc(), tonepair_generator(), wav_read(), wav_write(), xagi_exec(), zt_new(), zt_read(), and zt_write().
#define AST_FORMAT_SPEEX (1 << 9) |
SpeeX Free Compression
Definition at line 238 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), ast_rtp_write(), convertcap(), and speextolin_sample().
#define AST_FORMAT_ULAW (1 << 2) |
Raw mu-law data (G.711)
Definition at line 224 of file frame.h.
Referenced by __adsi_transmit_messages(), adsi_careful_send(), alarmreceiver_exec(), ast_adsi_transmit_message_full(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_process(), codec_ast2skinny(), codec_skinny2ast(), conf_run(), convertcap(), disa_exec(), load_module(), milliwatt_exec(), milliwatt_generate(), oh323_rtp_read(), phone_request(), phone_setup(), phone_write(), send_tone_burst(), ulawtoalaw_sample(), ulawtolin_sample(), zt_new(), zt_read(), and zt_write().
#define AST_FORMAT_VIDEO_MASK (((1 << 25)-1) & ~(AST_FORMAT_AUDIO_MASK)) |
Definition at line 263 of file frame.h.
Referenced by add_sdp(), ast_request_with_uniqueid(), ast_translate_available_formats(), check_user_full(), create_addr_from_peer(), func_channel_read(), gtalk_new(), gtalk_rtp_read(), sip_new(), and sip_rtp_read().
#define ast_frame_byteswap_be | ( | fr | ) | do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data, __f->data, __f->samples); } while(0) |
#define ast_frame_byteswap_le | ( | fr | ) | do { ; } while(0) |
#define AST_FRAME_DTMF AST_FRAME_DTMF_END |
Definition at line 124 of file frame.h.
Referenced by __adsi_transmit_messages(), __ast_play_and_record(), action_zapdialoffhook(), agent_ack_sleep(), app_exec(), ast_bridge_call(), ast_dsp_process(), ast_feature_request_and_dial(), ast_generic_bridge(), ast_jb_put(), background_detect_exec(), cb_events(), channel_spy(), conf_exec(), conf_run(), console_dial(), console_dial_deprecated(), dictate_exec(), disa_exec(), do_immediate_setup(), echo_exec(), gtalk_handle_dtmf(), handle_recordfile(), handle_request(), handle_request_info(), iax2_bridge(), mgcp_rtp_read(), misdn_bridge(), mp3_exec(), NBScat_exec(), oh323_rtp_read(), phone_exception(), process_ast_dsp(), receive_dtmf_digits(), record_exec(), rpt(), rpt_call(), rpt_exec(), send_waveform_to_channel(), sip_rtp_read(), speech_background(), ss_thread(), wait_for_answer(), wait_for_winner(), zt_bridge(), and zt_read().
#define AST_FRAME_SET_BUFFER | ( | fr, | |||
_base, | |||||
_ofs, | |||||
_datalen | ) |
Value:
Set the various field of a frame to point to a buffer. Typically you set the base address of the buffer, the offset as AST_FRIENDLY_OFFSET, and the datalen as the amount of bytes queued. The remaining things (to be done manually) is set the number of samples, which cannot be derived from the datalen unless you know the number of bits per sample.Definition at line 169 of file frame.h.
Referenced by g723_read(), g726_read(), g729_read(), gsm_read(), h263_read(), h264_read(), ilbc_read(), ogg_vorbis_read(), pcm_read(), slinear_read(), vox_read(), and wav_read().
#define ast_frfree | ( | fr | ) | ast_frame_free(fr, 1) |
Definition at line 388 of file frame.h.
Referenced by __adsi_transmit_messages(), __ast_play_and_record(), __ast_read(), __ast_request_and_dial(), adsi_careful_send(), agent_ack_sleep(), agent_read(), app_exec(), ast_autoservice_stop(), ast_bridge_call(), ast_channel_free(), ast_channel_spy_free(), ast_channel_spy_read_frame(), ast_dsp_process(), ast_feature_request_and_dial(), ast_generic_bridge(), ast_jb_destroy(), ast_jb_put(), ast_masq_autoanswer_login(), ast_masq_hold_call(), ast_masq_park_call(), ast_queue_frame(), ast_recvtext(), ast_rtp_write(), ast_safe_sleep_conditional(), ast_send_image(), ast_slinfactory_destroy(), ast_slinfactory_read(), ast_tonepair(), ast_translate(), ast_udptl_bridge(), ast_waitfordigit_full(), ast_write(), async_wait(), autoservice_run(), background_detect_exec(), bridge_native_loop(), bridge_p2p_loop(), builtin_atxfer(), calc_cost(), channel_spy(), check_goto_on_transfer(), conf_exec(), conf_flush(), conf_free(), conf_run(), copy_data_from_queue(), create_jb(), dictate_exec(), disa_exec(), do_autoanswer_thread(), do_holding_thread(), do_parking_thread(), do_waiting(), echo_exec(), find_cache(), gen_generate(), handle_invite_replaces(), handle_recordfile(), iax2_bridge(), iax_park_thread(), ices_exec(), isAnsweringMachine(), jb_get_and_deliver(), measurenoise(), moh_files_generator(), monitor_dial(), mp3_exec(), NBScat_exec(), queue_frame_to_spies(), receive_dtmf_digits(), record_exec(), recordthread(), rpt(), rpt_exec(), run_agi(), send_tone_burst(), send_waveform_to_channel(), sendurl_exec(), sms_exec(), speech_background(), spy_generate(), ss_thread(), wait_for_answer(), wait_for_hangup(), wait_for_winner(), waitforring_exec(), waitstream_core(), and zt_bridge().
#define AST_FRIENDLY_OFFSET 64 |
Definition at line 180 of file frame.h.
Referenced by __get_from_jb(), alsa_read(), ast_frdup(), ast_frisolate(), ast_prod(), ast_rtcp_read(), ast_rtp_read(), ast_smoother_read(), ast_trans_frameout(), ast_udptl_read(), conf_run(), g723_read(), g726_read(), g729_read(), gsm_read(), h263_read(), h264_read(), iax_frame_wrap(), ilbc_read(), jb_get_and_deliver(), linear_generator(), milliwatt_generate(), moh_generate(), mohalloc(), mp3_exec(), NBScat_exec(), newpvt(), ogg_vorbis_read(), oss_read(), pcm_read(), phone_read(), playtones_generator(), process_rfc3389(), send_tone_burst(), send_waveform_to_channel(), slinear_read(), sms_generate(), tonepair_generator(), vox_read(), wav_read(), zap_frameout(), and zt_read().
#define AST_HTML_BEGIN 4 |
#define AST_HTML_DATA 2 |
#define AST_HTML_END 8 |
#define AST_HTML_LDCOMPLETE 16 |
Load is complete
Definition at line 208 of file frame.h.
Referenced by ast_frame_dump(), and sendurl_exec().
#define AST_HTML_LINKREJECT 20 |
#define AST_HTML_LINKURL 18 |
#define AST_HTML_NOSUPPORT 17 |
Peer is unable to support HTML
Definition at line 210 of file frame.h.
Referenced by ast_frame_dump(), and sendurl_exec().
#define AST_HTML_UNLINK 19 |
#define AST_HTML_URL 1 |
Sending a URL
Definition at line 200 of file frame.h.
Referenced by ast_channel_sendurl(), and ast_frame_dump().
#define AST_MALLOCD_DATA (1 << 1) |
Need the data be free'd?
Definition at line 188 of file frame.h.
Referenced by ast_frame_free(), and ast_frisolate().
#define AST_MALLOCD_HDR (1 << 0) |
Need the header be free'd?
Definition at line 186 of file frame.h.
Referenced by ast_frame_free(), ast_frame_header_new(), ast_frdup(), and ast_frisolate().
#define AST_MALLOCD_SRC (1 << 2) |
Need the source be free'd? (haha!)
Definition at line 190 of file frame.h.
Referenced by ast_frame_free(), and ast_frisolate().
#define AST_MIN_OFFSET 32 |
#define AST_MODEM_T38 1 |
T.38 Fax-over-IP
Definition at line 194 of file frame.h.
Referenced by ast_frame_dump(), and udptl_rx_packet().
#define AST_MODEM_V150 2 |
#define AST_OPTION_AUDIO_MODE 4 |
Set (or clear) Audio (Not-Clear) Mode
Definition at line 308 of file frame.h.
Referenced by zt_hangup(), and zt_setoption().
#define AST_OPTION_ECHOCAN 8 |
Explicitly enable or disable echo cancelation for the given channel
Definition at line 330 of file frame.h.
Referenced by zt_setoption().
#define AST_OPTION_FLAG_REQUEST 0 |
#define AST_OPTION_OPRMODE 7 |
#define AST_OPTION_RELAXDTMF 3 |
Relax the parameters for DTMF reception (mainly for radio use)
Definition at line 305 of file frame.h.
Referenced by rpt(), and zt_setoption().
#define AST_OPTION_RXGAIN 6 |
Set channel receive gain Option data is a single signed char representing number of decibels (dB) to set gain to (on top of any gain specified in channel driver)
Definition at line 324 of file frame.h.
Referenced by func_channel_write(), iax2_setoption(), play_record_review(), reset_volumes(), set_talk_volume(), vm_forwardoptions(), and zt_setoption().
#define AST_OPTION_TDD 2 |
Put a compatible channel into TDD (TTY for the hearing-impared) mode
Definition at line 302 of file frame.h.
Referenced by handle_tddmode(), zt_hangup(), and zt_setoption().
#define AST_OPTION_TONE_VERIFY 1 |
Verify touchtones by muting audio transmission (and reception) and verify the tone is still present
Definition at line 299 of file frame.h.
Referenced by conf_run(), rpt(), rpt_exec(), try_calling(), zt_hangup(), and zt_setoption().
#define AST_OPTION_TXGAIN 5 |
Set channel transmit gain Option data is a single signed char representing number of decibels (dB) to set gain to (on top of any gain specified in channel driver)
Definition at line 316 of file frame.h.
Referenced by common_exec(), func_channel_write(), iax2_setoption(), reset_volumes(), set_listen_volume(), set_volume(), and zt_setoption().
#define AST_SMOOTHER_FLAG_BE (1 << 1) |
#define AST_SMOOTHER_FLAG_G729 (1 << 0) |
Definition at line 286 of file frame.h.
Referenced by __ast_smoother_feed(), and ast_smoother_read().
Definition at line 265 of file frame.h.
00265 { 00266 AST_CONTROL_HANGUP = 1, /*!< Other end has hungup */ 00267 AST_CONTROL_RING = 2, /*!< Local ring */ 00268 AST_CONTROL_RINGING = 3, /*!< Remote end is ringing */ 00269 AST_CONTROL_ANSWER = 4, /*!< Remote end has answered */ 00270 AST_CONTROL_BUSY = 5, /*!< Remote end is busy */ 00271 AST_CONTROL_TAKEOFFHOOK = 6, /*!< Make it go off hook */ 00272 AST_CONTROL_OFFHOOK = 7, /*!< Line is off hook */ 00273 AST_CONTROL_CONGESTION = 8, /*!< Congestion (circuits busy) */ 00274 AST_CONTROL_FLASH = 9, /*!< Flash hook */ 00275 AST_CONTROL_WINK = 10, /*!< Wink */ 00276 AST_CONTROL_OPTION = 11, /*!< Set a low-level option */ 00277 AST_CONTROL_RADIO_KEY = 12, /*!< Key Radio */ 00278 AST_CONTROL_RADIO_UNKEY = 13, /*!< Un-Key Radio */ 00279 AST_CONTROL_PROGRESS = 14, /*!< Indicate PROGRESS */ 00280 AST_CONTROL_PROCEEDING = 15, /*!< Indicate CALL PROCEEDING */ 00281 AST_CONTROL_HOLD = 16, /*!< Indicate call is placed on hold */ 00282 AST_CONTROL_UNHOLD = 17, /*!< Indicate call is left from hold */ 00283 AST_CONTROL_VIDUPDATE = 18, /*!< Indicate video frame update */ 00284 };
enum ast_frame_type |
Frame types.
Definition at line 97 of file frame.h.
00097 { 00098 /*! DTMF end event, subclass is the digit */ 00099 AST_FRAME_DTMF_END = 1, 00100 /*! Voice data, subclass is AST_FORMAT_* */ 00101 AST_FRAME_VOICE, 00102 /*! Video frame, maybe?? :) */ 00103 AST_FRAME_VIDEO, 00104 /*! A control frame, subclass is AST_CONTROL_* */ 00105 AST_FRAME_CONTROL, 00106 /*! An empty, useless frame */ 00107 AST_FRAME_NULL, 00108 /*! Inter Asterisk Exchange private frame type */ 00109 AST_FRAME_IAX, 00110 /*! Text messages */ 00111 AST_FRAME_TEXT, 00112 /*! Image Frames */ 00113 AST_FRAME_IMAGE, 00114 /*! HTML Frame */ 00115 AST_FRAME_HTML, 00116 /*! Comfort Noise frame (subclass is level of CNG in -dBov), 00117 body may include zero or more 8-bit quantization coefficients */ 00118 AST_FRAME_CNG, 00119 /*! Modem-over-IP data streams */ 00120 AST_FRAME_MODEM, 00121 /*! DTMF begin event, subclass is the digit */ 00122 AST_FRAME_DTMF_BEGIN, 00123 };
int __ast_smoother_feed | ( | struct ast_smoother * | s, | |
struct ast_frame * | f, | |||
int | swap | |||
) |
Definition at line 170 of file frame.c.
References AST_FRAME_VOICE, ast_log(), AST_MIN_OFFSET, AST_SMOOTHER_FLAG_G729, ast_swapcopy_samples(), ast_smoother::data, ast_frame::data, ast_frame::datalen, ast_smoother::delivery, ast_frame::delivery, ast_smoother::flags, ast_smoother::format, ast_frame::frametype, ast_smoother::len, LOG_NOTICE, LOG_WARNING, ast_frame::offset, ast_smoother::opt, ast_smoother::optimizablestream, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, SMOOTHER_SIZE, and ast_frame::subclass.
00171 { 00172 if (f->frametype != AST_FRAME_VOICE) { 00173 ast_log(LOG_WARNING, "Huh? Can't smooth a non-voice frame!\n"); 00174 return -1; 00175 } 00176 if (!s->format) { 00177 s->format = f->subclass; 00178 s->samplesperbyte = (float)f->samples / (float)f->datalen; 00179 } else if (s->format != f->subclass) { 00180 ast_log(LOG_WARNING, "Smoother was working on %d format frames, now trying to feed %d?\n", s->format, f->subclass); 00181 return -1; 00182 } 00183 if (s->len + f->datalen > SMOOTHER_SIZE) { 00184 ast_log(LOG_WARNING, "Out of smoother space\n"); 00185 return -1; 00186 } 00187 if (((f->datalen == s->size) || ((f->datalen < 10) && (s->flags & AST_SMOOTHER_FLAG_G729))) 00188 && !s->opt && (f->offset >= AST_MIN_OFFSET)) { 00189 if (!s->len) { 00190 /* Optimize by sending the frame we just got 00191 on the next read, thus eliminating the douple 00192 copy */ 00193 if (swap) 00194 ast_swapcopy_samples(f->data, f->data, f->samples); 00195 s->opt = f; 00196 return 0; 00197 } else { 00198 s->optimizablestream++; 00199 if (s->optimizablestream > 10) { 00200 /* For the past 10 rounds, we have input and output 00201 frames of the correct size for this smoother, yet 00202 we were unable to optimize because there was still 00203 some cruft left over. Lets just drop the cruft so 00204 we can move to a fully optimized path */ 00205 if (swap) 00206 ast_swapcopy_samples(f->data, f->data, f->samples); 00207 s->len = 0; 00208 s->opt = f; 00209 return 0; 00210 } 00211 } 00212 } else 00213 s->optimizablestream = 0; 00214 if (s->flags & AST_SMOOTHER_FLAG_G729) { 00215 if (s->len % 10) { 00216 ast_log(LOG_NOTICE, "Dropping extra frame of G.729 since we already have a VAD frame at the end\n"); 00217 return 0; 00218 } 00219 } 00220 if (swap) 00221 ast_swapcopy_samples(s->data+s->len, f->data, f->samples); 00222 else 00223 memcpy(s->data + s->len, f->data, f->datalen); 00224 /* If either side is empty, reset the delivery time */ 00225 if (!s->len || ast_tvzero(f->delivery) || ast_tvzero(s->delivery)) /* XXX really ? */ 00226 s->delivery = f->delivery; 00227 s->len += f->datalen; 00228 return 0; 00229 }
char* ast_codec2str | ( | int | codec | ) |
Get a name from a format Gets a name from a format.
codec | codec number (1,2,4,8,16,etc.) |
Definition at line 605 of file frame.c.
References ast_format_list::desc.
Referenced by moh_alloc(), show_codec_n(), show_codec_n_deprecated(), show_codecs(), and show_codecs_deprecated().
00606 { 00607 int x; 00608 char *ret = "unknown"; 00609 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00610 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == codec) { 00611 ret = AST_FORMAT_LIST[x].desc; 00612 break; 00613 } 00614 } 00615 return ret; 00616 }
int ast_codec_choose | ( | struct ast_codec_pref * | pref, | |
int | formats, | |||
int | find_best | |||
) |
Select the best audio format according to preference list from supplied options. If "find_best" is non-zero then if nothing is found, the "Best" format of the format list is selected, otherwise 0 is returned.
Definition at line 1249 of file frame.c.
References ast_best_codec(), AST_FORMAT_AUDIO_MASK, ast_log(), ast_format_list::bits, LOG_DEBUG, option_debug, and ast_codec_pref::order.
Referenced by __oh323_new(), gtalk_new(), process_sdp(), sip_new(), and socket_process().
01250 { 01251 int x, ret = 0, slot; 01252 01253 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01254 slot = pref->order[x]; 01255 01256 if (!slot) 01257 break; 01258 if (formats & AST_FORMAT_LIST[slot-1].bits) { 01259 ret = AST_FORMAT_LIST[slot-1].bits; 01260 break; 01261 } 01262 } 01263 if(ret & AST_FORMAT_AUDIO_MASK) 01264 return ret; 01265 01266 if (option_debug > 3) 01267 ast_log(LOG_DEBUG, "Could not find preferred codec - %s\n", find_best ? "Going for the best codec" : "Returning zero codec"); 01268 01269 return find_best ? ast_best_codec(formats) : 0; 01270 }
int ast_codec_get_len | ( | int | format, | |
int | samples | |||
) |
Returns the number of bytes for the number of samples of the given format.
Definition at line 1508 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G726, AST_FORMAT_G726_AAL2, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), len, and LOG_WARNING.
Referenced by ast_channel_spy_read_frame(), copy_data_from_queue(), moh_generate(), and monmp3thread().
01509 { 01510 int len = 0; 01511 01512 /* XXX Still need speex, g723, and lpc10 XXX */ 01513 switch(format) { 01514 case AST_FORMAT_ILBC: 01515 len = (samples / 240) * 50; 01516 break; 01517 case AST_FORMAT_GSM: 01518 len = (samples / 160) * 33; 01519 break; 01520 case AST_FORMAT_G729A: 01521 len = samples / 8; 01522 break; 01523 case AST_FORMAT_SLINEAR: 01524 len = samples * 2; 01525 break; 01526 case AST_FORMAT_ULAW: 01527 case AST_FORMAT_ALAW: 01528 len = samples; 01529 break; 01530 case AST_FORMAT_ADPCM: 01531 case AST_FORMAT_G726: 01532 case AST_FORMAT_G726_AAL2: 01533 len = samples / 2; 01534 break; 01535 default: 01536 ast_log(LOG_WARNING, "Unable to calculate sample length for format %s\n", ast_getformatname(format)); 01537 } 01538 01539 return len; 01540 }
int ast_codec_get_samples | ( | struct ast_frame * | f | ) |
Returns the number of samples contained in the frame.
Definition at line 1465 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G722, AST_FORMAT_G723_1, AST_FORMAT_G726, AST_FORMAT_G726_AAL2, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_LPC10, AST_FORMAT_SLINEAR, AST_FORMAT_SPEEX, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), ast_frame::data, ast_frame::datalen, g723_samples(), LOG_WARNING, speex_samples(), and ast_frame::subclass.
Referenced by ast_rtp_read(), isAnsweringMachine(), moh_generate(), schedule_delivery(), and socket_process().
01466 { 01467 int samples=0; 01468 switch(f->subclass) { 01469 case AST_FORMAT_SPEEX: 01470 samples = speex_samples(f->data, f->datalen); 01471 break; 01472 case AST_FORMAT_G723_1: 01473 samples = g723_samples(f->data, f->datalen); 01474 break; 01475 case AST_FORMAT_ILBC: 01476 samples = 240 * (f->datalen / 50); 01477 break; 01478 case AST_FORMAT_GSM: 01479 samples = 160 * (f->datalen / 33); 01480 break; 01481 case AST_FORMAT_G729A: 01482 samples = f->datalen * 8; 01483 break; 01484 case AST_FORMAT_SLINEAR: 01485 samples = f->datalen / 2; 01486 break; 01487 case AST_FORMAT_LPC10: 01488 /* assumes that the RTP packet contains one LPC10 frame */ 01489 samples = 22 * 8; 01490 samples += (((char *)(f->data))[7] & 0x1) * 8; 01491 break; 01492 case AST_FORMAT_ULAW: 01493 case AST_FORMAT_ALAW: 01494 case AST_FORMAT_G722: 01495 samples = f->datalen; 01496 break; 01497 case AST_FORMAT_ADPCM: 01498 case AST_FORMAT_G726: 01499 case AST_FORMAT_G726_AAL2: 01500 samples = f->datalen * 2; 01501 break; 01502 default: 01503 ast_log(LOG_WARNING, "Unable to calculate samples for format %s\n", ast_getformatname(f->subclass)); 01504 } 01505 return samples; 01506 }
static int ast_codec_interp_len | ( | int | format | ) | [inline, static] |
Gets duration in ms of interpolation frame for a format.
Definition at line 535 of file frame.h.
References AST_FORMAT_ILBC.
Referenced by __get_from_jb(), and jb_get_and_deliver().
00536 { 00537 return (format == AST_FORMAT_ILBC) ? 30 : 20; 00538 }
int ast_codec_pref_append | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Append a audio codec to a preference list, removing it first if it was already there.
Definition at line 1144 of file frame.c.
References ast_codec_pref_remove(), and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow().
01145 { 01146 int x, newindex = -1; 01147 01148 ast_codec_pref_remove(pref, format); 01149 01150 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01151 if(AST_FORMAT_LIST[x].bits == format) { 01152 newindex = x + 1; 01153 break; 01154 } 01155 } 01156 01157 if(newindex) { 01158 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01159 if(!pref->order[x]) { 01160 pref->order[x] = newindex; 01161 break; 01162 } 01163 } 01164 } 01165 01166 return x; 01167 }
void ast_codec_pref_convert | ( | struct ast_codec_pref * | pref, | |
char * | buf, | |||
size_t | size, | |||
int | right | |||
) |
Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string.
Definition at line 1046 of file frame.c.
References ast_codec_pref::order.
Referenced by check_access(), create_addr(), dump_prefs(), and socket_process().
01047 { 01048 int x, differential = (int) 'A', mem; 01049 char *from, *to; 01050 01051 if(right) { 01052 from = pref->order; 01053 to = buf; 01054 mem = size; 01055 } else { 01056 to = pref->order; 01057 from = buf; 01058 mem = 32; 01059 } 01060 01061 memset(to, 0, mem); 01062 for (x = 0; x < 32 ; x++) { 01063 if(!from[x]) 01064 break; 01065 to[x] = right ? (from[x] + differential) : (from[x] - differential); 01066 } 01067 }
struct ast_format_list ast_codec_pref_getsize | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) | [read] |
Get packet size for codec.
Definition at line 1210 of file frame.c.
References ast_format_list::bits, ast_format_list::cur_ms, ast_format_list::def_ms, format, ast_format_list::inc_ms, ast_format_list::max_ms, and ast_format_list::min_ms.
Referenced by add_codec_to_sdp(), ast_rtp_bridge(), ast_rtp_write(), handle_open_receive_channel_ack_message(), and transmit_connect().
01211 { 01212 int x, index = -1, framems = 0; 01213 struct ast_format_list fmt = {0}; 01214 01215 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01216 if(AST_FORMAT_LIST[x].bits == format) { 01217 fmt = AST_FORMAT_LIST[x]; 01218 index = x; 01219 break; 01220 } 01221 } 01222 01223 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01224 if(pref->order[x] == (index + 1)) { 01225 framems = pref->framing[x]; 01226 break; 01227 } 01228 } 01229 01230 /* size validation */ 01231 if(!framems) 01232 framems = AST_FORMAT_LIST[index].def_ms; 01233 01234 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01235 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01236 01237 if(framems < AST_FORMAT_LIST[index].min_ms) 01238 framems = AST_FORMAT_LIST[index].min_ms; 01239 01240 if(framems > AST_FORMAT_LIST[index].max_ms) 01241 framems = AST_FORMAT_LIST[index].max_ms; 01242 01243 fmt.cur_ms = framems; 01244 01245 return fmt; 01246 }
int ast_codec_pref_index | ( | struct ast_codec_pref * | pref, | |
int | index | |||
) |
Codec located at a particular place in the preference index See Audio Codec Preferences.
Definition at line 1104 of file frame.c.
References ast_format_list::bits, and ast_codec_pref::order.
Referenced by _sip_show_peer(), add_sdp(), ast_codec_pref_string(), function_iaxpeer(), function_sippeer(), gtalk_invite(), iax2_show_peer(), print_codec_to_cli(), and socket_process().
01105 { 01106 int slot = 0; 01107 01108 01109 if((index >= 0) && (index < sizeof(pref->order))) { 01110 slot = pref->order[index]; 01111 } 01112 01113 return slot ? AST_FORMAT_LIST[slot-1].bits : 0; 01114 }
void ast_codec_pref_init | ( | struct ast_codec_pref * | pref | ) |
Initialize an audio codec preference to "no preference" See Audio Codec Preferences.
void ast_codec_pref_remove | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Remove audio a codec from a preference list.
Definition at line 1117 of file frame.c.
References ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by ast_codec_pref_append(), and ast_parse_allow_disallow().
01118 { 01119 struct ast_codec_pref oldorder; 01120 int x, y = 0; 01121 int slot; 01122 int size; 01123 01124 if(!pref->order[0]) 01125 return; 01126 01127 memcpy(&oldorder, pref, sizeof(oldorder)); 01128 memset(pref, 0, sizeof(*pref)); 01129 01130 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01131 slot = oldorder.order[x]; 01132 size = oldorder.framing[x]; 01133 if(! slot) 01134 break; 01135 if(AST_FORMAT_LIST[slot-1].bits != format) { 01136 pref->order[y] = slot; 01137 pref->framing[y++] = size; 01138 } 01139 } 01140 01141 }
int ast_codec_pref_setsize | ( | struct ast_codec_pref * | pref, | |
int | format, | |||
int | framems | |||
) |
Set packet size for codec.
Definition at line 1171 of file frame.c.
References ast_format_list::def_ms, ast_codec_pref::framing, ast_format_list::inc_ms, ast_format_list::max_ms, ast_format_list::min_ms, and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow(), and process_sdp().
01172 { 01173 int x, index = -1; 01174 01175 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01176 if(AST_FORMAT_LIST[x].bits == format) { 01177 index = x; 01178 break; 01179 } 01180 } 01181 01182 if(index < 0) 01183 return -1; 01184 01185 /* size validation */ 01186 if(!framems) 01187 framems = AST_FORMAT_LIST[index].def_ms; 01188 01189 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01190 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01191 01192 if(framems < AST_FORMAT_LIST[index].min_ms) 01193 framems = AST_FORMAT_LIST[index].min_ms; 01194 01195 if(framems > AST_FORMAT_LIST[index].max_ms) 01196 framems = AST_FORMAT_LIST[index].max_ms; 01197 01198 01199 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01200 if(pref->order[x] == (index + 1)) { 01201 pref->framing[x] = framems; 01202 break; 01203 } 01204 } 01205 01206 return x; 01207 }
int ast_codec_pref_string | ( | struct ast_codec_pref * | pref, | |
char * | buf, | |||
size_t | size | |||
) |
Dump audio codec preference list into a string.
Definition at line 1069 of file frame.c.
References ast_codec_pref_index(), and ast_getformatname().
Referenced by dump_prefs(), and socket_process().
01070 { 01071 int x, codec; 01072 size_t total_len, slen; 01073 char *formatname; 01074 01075 memset(buf,0,size); 01076 total_len = size; 01077 buf[0] = '('; 01078 total_len--; 01079 for(x = 0; x < 32 ; x++) { 01080 if(total_len <= 0) 01081 break; 01082 if(!(codec = ast_codec_pref_index(pref,x))) 01083 break; 01084 if((formatname = ast_getformatname(codec))) { 01085 slen = strlen(formatname); 01086 if(slen > total_len) 01087 break; 01088 strncat(buf,formatname,total_len); 01089 total_len -= slen; 01090 } 01091 if(total_len && x < 31 && ast_codec_pref_index(pref , x + 1)) { 01092 strncat(buf,"|",total_len); 01093 total_len--; 01094 } 01095 } 01096 if(total_len) { 01097 strncat(buf,")",total_len); 01098 total_len--; 01099 } 01100 01101 return size - total_len; 01102 }
int ast_frame_adjust_volume | ( | struct ast_frame * | f, | |
int | adjustment | |||
) |
Adjusts the volume of the audio samples contained in a frame.
f | The frame containing the samples (must be AST_FRAME_VOICE and AST_FORMAT_SLINEAR) | |
adjustment | The number of dB to adjust up or down. |
Definition at line 1542 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_divide(), ast_slinear_saturated_multiply(), ast_frame::data, ast_frame::frametype, ast_frame::samples, and ast_frame::subclass.
Referenced by ast_channel_spy_read_frame(), ast_write(), and conf_run().
01543 { 01544 int count; 01545 short *fdata = f->data; 01546 short adjust_value = abs(adjustment); 01547 01548 if ((f->frametype != AST_FRAME_VOICE) || (f->subclass != AST_FORMAT_SLINEAR)) 01549 return -1; 01550 01551 if (!adjustment) 01552 return 0; 01553 01554 for (count = 0; count < f->samples; count++) { 01555 if (adjustment > 0) { 01556 ast_slinear_saturated_multiply(&fdata[count], &adjust_value); 01557 } else if (adjustment < 0) { 01558 ast_slinear_saturated_divide(&fdata[count], &adjust_value); 01559 } 01560 } 01561 01562 return 0; 01563 }
void ast_frame_dump | ( | const char * | name, | |
struct ast_frame * | f, | |||
char * | prefix | |||
) |
Dump a frame for debugging purposes
Definition at line 759 of file frame.c.
References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_WINK, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_getformatname(), AST_HTML_BEGIN, AST_HTML_DATA, AST_HTML_END, AST_HTML_LDCOMPLETE, AST_HTML_LINKREJECT, AST_HTML_LINKURL, AST_HTML_NOSUPPORT, AST_HTML_UNLINK, AST_HTML_URL, AST_MODEM_T38, AST_MODEM_V150, ast_strlen_zero(), ast_verbose(), COLOR_BLACK, COLOR_BRCYAN, COLOR_BRGREEN, COLOR_BRMAGENTA, COLOR_BRRED, COLOR_YELLOW, ast_frame::data, ast_frame::frametype, ast_frame::subclass, and term_color().
Referenced by __ast_read(), and ast_write().
00760 { 00761 const char noname[] = "unknown"; 00762 char ftype[40] = "Unknown Frametype"; 00763 char cft[80]; 00764 char subclass[40] = "Unknown Subclass"; 00765 char csub[80]; 00766 char moreinfo[40] = ""; 00767 char cn[60]; 00768 char cp[40]; 00769 char cmn[40]; 00770 00771 if (!name) 00772 name = noname; 00773 00774 00775 if (!f) { 00776 ast_verbose("%s [ %s (NULL) ] [%s]\n", 00777 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00778 term_color(cft, "HANGUP", COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00779 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00780 return; 00781 } 00782 /* XXX We should probably print one each of voice and video when the format changes XXX */ 00783 if (f->frametype == AST_FRAME_VOICE) 00784 return; 00785 if (f->frametype == AST_FRAME_VIDEO) 00786 return; 00787 switch(f->frametype) { 00788 case AST_FRAME_DTMF_BEGIN: 00789 strcpy(ftype, "DTMF Begin"); 00790 subclass[0] = f->subclass; 00791 subclass[1] = '\0'; 00792 break; 00793 case AST_FRAME_DTMF_END: 00794 strcpy(ftype, "DTMF End"); 00795 subclass[0] = f->subclass; 00796 subclass[1] = '\0'; 00797 break; 00798 case AST_FRAME_CONTROL: 00799 strcpy(ftype, "Control"); 00800 switch(f->subclass) { 00801 case AST_CONTROL_HANGUP: 00802 strcpy(subclass, "Hangup"); 00803 break; 00804 case AST_CONTROL_RING: 00805 strcpy(subclass, "Ring"); 00806 break; 00807 case AST_CONTROL_RINGING: 00808 strcpy(subclass, "Ringing"); 00809 break; 00810 case AST_CONTROL_ANSWER: 00811 strcpy(subclass, "Answer"); 00812 break; 00813 case AST_CONTROL_BUSY: 00814 strcpy(subclass, "Busy"); 00815 break; 00816 case AST_CONTROL_TAKEOFFHOOK: 00817 strcpy(subclass, "Take Off Hook"); 00818 break; 00819 case AST_CONTROL_OFFHOOK: 00820 strcpy(subclass, "Line Off Hook"); 00821 break; 00822 case AST_CONTROL_CONGESTION: 00823 strcpy(subclass, "Congestion"); 00824 break; 00825 case AST_CONTROL_FLASH: 00826 strcpy(subclass, "Flash"); 00827 break; 00828 case AST_CONTROL_WINK: 00829 strcpy(subclass, "Wink"); 00830 break; 00831 case AST_CONTROL_OPTION: 00832 strcpy(subclass, "Option"); 00833 break; 00834 case AST_CONTROL_RADIO_KEY: 00835 strcpy(subclass, "Key Radio"); 00836 break; 00837 case AST_CONTROL_RADIO_UNKEY: 00838 strcpy(subclass, "Unkey Radio"); 00839 break; 00840 case -1: 00841 strcpy(subclass, "Stop generators"); 00842 break; 00843 default: 00844 snprintf(subclass, sizeof(subclass), "Unknown control '%d'", f->subclass); 00845 } 00846 break; 00847 case AST_FRAME_NULL: 00848 strcpy(ftype, "Null Frame"); 00849 strcpy(subclass, "N/A"); 00850 break; 00851 case AST_FRAME_IAX: 00852 /* Should never happen */ 00853 strcpy(ftype, "IAX Specific"); 00854 snprintf(subclass, sizeof(subclass), "IAX Frametype %d", f->subclass); 00855 break; 00856 case AST_FRAME_TEXT: 00857 strcpy(ftype, "Text"); 00858 strcpy(subclass, "N/A"); 00859 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00860 break; 00861 case AST_FRAME_IMAGE: 00862 strcpy(ftype, "Image"); 00863 snprintf(subclass, sizeof(subclass), "Image format %s\n", ast_getformatname(f->subclass)); 00864 break; 00865 case AST_FRAME_HTML: 00866 strcpy(ftype, "HTML"); 00867 switch(f->subclass) { 00868 case AST_HTML_URL: 00869 strcpy(subclass, "URL"); 00870 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00871 break; 00872 case AST_HTML_DATA: 00873 strcpy(subclass, "Data"); 00874 break; 00875 case AST_HTML_BEGIN: 00876 strcpy(subclass, "Begin"); 00877 break; 00878 case AST_HTML_END: 00879 strcpy(subclass, "End"); 00880 break; 00881 case AST_HTML_LDCOMPLETE: 00882 strcpy(subclass, "Load Complete"); 00883 break; 00884 case AST_HTML_NOSUPPORT: 00885 strcpy(subclass, "No Support"); 00886 break; 00887 case AST_HTML_LINKURL: 00888 strcpy(subclass, "Link URL"); 00889 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00890 break; 00891 case AST_HTML_UNLINK: 00892 strcpy(subclass, "Unlink"); 00893 break; 00894 case AST_HTML_LINKREJECT: 00895 strcpy(subclass, "Link Reject"); 00896 break; 00897 default: 00898 snprintf(subclass, sizeof(subclass), "Unknown HTML frame '%d'\n", f->subclass); 00899 break; 00900 } 00901 break; 00902 case AST_FRAME_MODEM: 00903 strcpy(ftype, "Modem"); 00904 switch (f->subclass) { 00905 case AST_MODEM_T38: 00906 strcpy(subclass, "T.38"); 00907 break; 00908 case AST_MODEM_V150: 00909 strcpy(subclass, "V.150"); 00910 break; 00911 default: 00912 snprintf(subclass, sizeof(subclass), "Unknown MODEM frame '%d'\n", f->subclass); 00913 break; 00914 } 00915 break; 00916 default: 00917 snprintf(ftype, sizeof(ftype), "Unknown Frametype '%d'", f->frametype); 00918 } 00919 if (!ast_strlen_zero(moreinfo)) 00920 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) '%s' ] [%s]\n", 00921 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00922 term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00923 f->frametype, 00924 term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)), 00925 f->subclass, 00926 term_color(cmn, moreinfo, COLOR_BRGREEN, COLOR_BLACK, sizeof(cmn)), 00927 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00928 else 00929 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) ] [%s]\n", 00930 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00931 term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00932 f->frametype, 00933 term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)), 00934 f->subclass, 00935 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00936 }
struct ast_frame* ast_frame_enqueue | ( | struct ast_frame * | head, | |
struct ast_frame * | f, | |||
int | maxlen, | |||
int | dupe | |||
) | [read] |
Appends a frame to the end of a list of frames, truncating the maximum length of the list.
void ast_frame_free | ( | struct ast_frame * | fr, | |
int | cache | |||
) |
Requests a frame to be allocated.
source | Request a frame be allocated. source is an optional source of the frame, len is the requested length, or "0" if the caller will supply the buffer |
fr | Frame to free | |
cache | Whether to consider this frame for frame caching |
Definition at line 334 of file frame.c.
References AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_UNLOCK, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_frame::data, FRAME_CACHE_MAX_SIZE, frames, free, ast_frame_cache::list, ast_frame::mallocd, ast_frame::offset, ast_frame_cache::size, and ast_frame::src.
Referenced by mixmonitor_thread().
00335 { 00336 if (!fr->mallocd) 00337 return; 00338 00339 #if !defined(LOW_MEMORY) 00340 if (cache && fr->mallocd == AST_MALLOCD_HDR) { 00341 /* Cool, only the header is malloc'd, let's just cache those for now 00342 * to keep things simple... */ 00343 struct ast_frame_cache *frames; 00344 00345 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames))) 00346 && frames->size < FRAME_CACHE_MAX_SIZE) { 00347 AST_LIST_INSERT_HEAD(&frames->list, fr, frame_list); 00348 frames->size++; 00349 return; 00350 } 00351 } 00352 #endif 00353 00354 if (fr->mallocd & AST_MALLOCD_DATA) { 00355 if (fr->data) 00356 free(fr->data - fr->offset); 00357 } 00358 if (fr->mallocd & AST_MALLOCD_SRC) { 00359 if (fr->src) 00360 free((char *)fr->src); 00361 } 00362 if (fr->mallocd & AST_MALLOCD_HDR) { 00363 #ifdef TRACE_FRAMES 00364 AST_LIST_LOCK(&headerlist); 00365 headers--; 00366 AST_LIST_REMOVE(&headerlist, fr, frame_list); 00367 AST_LIST_UNLOCK(&headerlist); 00368 #endif 00369 free(fr); 00370 } 00371 }
Sums two frames of audio samples.
f1 | The first frame (which will contain the result) | |
f2 | The second frame |
Definition at line 1565 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_add(), ast_frame::data, ast_frame::frametype, ast_frame::samples, and ast_frame::subclass.
Referenced by ast_channel_spy_read_frame(), and ast_write().
01566 { 01567 int count; 01568 short *data1, *data2; 01569 01570 if ((f1->frametype != AST_FRAME_VOICE) || (f1->subclass != AST_FORMAT_SLINEAR)) 01571 return -1; 01572 01573 if ((f2->frametype != AST_FRAME_VOICE) || (f2->subclass != AST_FORMAT_SLINEAR)) 01574 return -1; 01575 01576 if (f1->samples != f2->samples) 01577 return -1; 01578 01579 for (count = 0, data1 = f1->data, data2 = f2->data; 01580 count < f1->samples; 01581 count++, data1++, data2++) 01582 ast_slinear_saturated_add(data1, data2); 01583 01584 return 0; 01585 }
Copies a frame.
fr | frame to copy Duplicates a frame -- should only rarely be used, typically frisolate is good enough |
Definition at line 434 of file frame.c.
References ast_calloc_cache, AST_FRIENDLY_OFFSET, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_MALLOCD_HDR, ast_frame::data, ast_frame::datalen, ast_frame::delivery, frames, ast_frame::frametype, ast_frame::has_timing_info, ast_frame::len, len, ast_frame_cache::list, ast_frame::mallocd, ast_frame::mallocd_hdr_len, ast_frame::offset, ast_frame::samples, ast_frame::seqno, ast_frame_cache::size, ast_frame::src, ast_frame::subclass, and ast_frame::ts.
Referenced by ast_channel_spy_read_frame(), ast_jb_put(), ast_queue_frame(), ast_rtp_write(), ast_slinfactory_feed(), defer_frame(), queue_frame_to_spies(), recordthread(), rpt(), and rpt_exec().
00435 { 00436 struct ast_frame *out = NULL; 00437 int len, srclen = 0; 00438 void *buf = NULL; 00439 00440 #if !defined(LOW_MEMORY) 00441 struct ast_frame_cache *frames; 00442 #endif 00443 00444 /* Start with standard stuff */ 00445 len = sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00446 /* If we have a source, add space for it */ 00447 /* 00448 * XXX Watch out here - if we receive a src which is not terminated 00449 * properly, we can be easily attacked. Should limit the size we deal with. 00450 */ 00451 if (f->src) 00452 srclen = strlen(f->src); 00453 if (srclen > 0) 00454 len += srclen + 1; 00455 00456 #if !defined(LOW_MEMORY) 00457 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) { 00458 AST_LIST_TRAVERSE_SAFE_BEGIN(&frames->list, out, frame_list) { 00459 if (out->mallocd_hdr_len >= len) { 00460 size_t mallocd_len = out->mallocd_hdr_len; 00461 AST_LIST_REMOVE_CURRENT(&frames->list, frame_list); 00462 memset(out, 0, sizeof(*out)); 00463 out->mallocd_hdr_len = mallocd_len; 00464 buf = out; 00465 frames->size--; 00466 break; 00467 } 00468 } 00469 AST_LIST_TRAVERSE_SAFE_END 00470 } 00471 #endif 00472 00473 if (!buf) { 00474 if (!(buf = ast_calloc_cache(1, len))) 00475 return NULL; 00476 out = buf; 00477 out->mallocd_hdr_len = len; 00478 } 00479 00480 out->frametype = f->frametype; 00481 out->subclass = f->subclass; 00482 out->datalen = f->datalen; 00483 out->samples = f->samples; 00484 out->delivery = f->delivery; 00485 /* Set us as having malloc'd header only, so it will eventually 00486 get freed. */ 00487 out->mallocd = AST_MALLOCD_HDR; 00488 out->offset = AST_FRIENDLY_OFFSET; 00489 if (out->datalen) { 00490 out->data = buf + sizeof(*out) + AST_FRIENDLY_OFFSET; 00491 memcpy(out->data, f->data, out->datalen); 00492 } 00493 if (srclen > 0) { 00494 out->src = buf + sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00495 /* Must have space since we allocated for it */ 00496 strcpy((char *)out->src, f->src); 00497 } 00498 out->has_timing_info = f->has_timing_info; 00499 out->ts = f->ts; 00500 out->len = f->len; 00501 out->seqno = f->seqno; 00502 return out; 00503 }
Makes a frame independent of any static storage.
fr | frame to act upon Take a frame, and if it's not been malloc'd, make a malloc'd copy and if the data hasn't been malloced then make the data malloc'd. If you need to store frames, say for queueing, then you should call this function. |
Definition at line 378 of file frame.c.
References ast_frame_header_new(), AST_FRIENDLY_OFFSET, ast_malloc, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_strdup, ast_frame::data, ast_frame::datalen, ast_frame::frametype, free, ast_frame::has_timing_info, ast_frame::len, ast_frame::mallocd, ast_frame::offset, ast_frame::samples, ast_frame::seqno, ast_frame::src, ast_frame::subclass, and ast_frame::ts.
Referenced by jpeg_read_image().
00379 { 00380 struct ast_frame *out; 00381 void *newdata; 00382 00383 if (!(fr->mallocd & AST_MALLOCD_HDR)) { 00384 /* Allocate a new header if needed */ 00385 if (!(out = ast_frame_header_new())) 00386 return NULL; 00387 out->frametype = fr->frametype; 00388 out->subclass = fr->subclass; 00389 out->datalen = fr->datalen; 00390 out->samples = fr->samples; 00391 out->offset = fr->offset; 00392 out->data = fr->data; 00393 /* Copy the timing data */ 00394 out->has_timing_info = fr->has_timing_info; 00395 if (fr->has_timing_info) { 00396 out->ts = fr->ts; 00397 out->len = fr->len; 00398 out->seqno = fr->seqno; 00399 } 00400 } else 00401 out = fr; 00402 00403 if (!(fr->mallocd & AST_MALLOCD_SRC)) { 00404 if (fr->src) { 00405 if (!(out->src = ast_strdup(fr->src))) { 00406 if (out != fr) 00407 free(out); 00408 return NULL; 00409 } 00410 } 00411 } else 00412 out->src = fr->src; 00413 00414 if (!(fr->mallocd & AST_MALLOCD_DATA)) { 00415 if (!(newdata = ast_malloc(fr->datalen + AST_FRIENDLY_OFFSET))) { 00416 if (out->src != fr->src) 00417 free((void *) out->src); 00418 if (out != fr) 00419 free(out); 00420 return NULL; 00421 } 00422 newdata += AST_FRIENDLY_OFFSET; 00423 out->offset = AST_FRIENDLY_OFFSET; 00424 out->datalen = fr->datalen; 00425 memcpy(newdata, fr->data, fr->datalen); 00426 out->data = newdata; 00427 } 00428 00429 out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA; 00430 00431 return out; 00432 }
struct ast_format_list* ast_get_format_list | ( | size_t * | size | ) | [read] |
Definition at line 521 of file frame.c.
00522 { 00523 *size = (sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0])); 00524 return AST_FORMAT_LIST; 00525 }
struct ast_format_list* ast_get_format_list_index | ( | int | index | ) | [read] |
int ast_getformatbyname | ( | const char * | name | ) |
Gets a format from a name.
name | string of format |
Definition at line 587 of file frame.c.
References ast_expand_codec_alias(), ast_format_list::bits, and format.
Referenced by ast_parse_allow_disallow(), iax_template_parse(), load_moh_classes(), reload_config(), and try_suggested_sip_codec().
00588 { 00589 int x, all, format = 0; 00590 00591 all = strcasecmp(name, "all") ? 0 : 1; 00592 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00593 if(AST_FORMAT_LIST[x].visible && (all || 00594 !strcasecmp(AST_FORMAT_LIST[x].name,name) || 00595 !strcasecmp(AST_FORMAT_LIST[x].name,ast_expand_codec_alias(name)))) { 00596 format |= AST_FORMAT_LIST[x].bits; 00597 if(!all) 00598 break; 00599 } 00600 } 00601 00602 return format; 00603 }
char* ast_getformatname | ( | int | format | ) |
Get the name of a format.
format | id of format |
Definition at line 527 of file frame.c.
References ast_format_list::bits, ast_format_list::name, and ast_format_list::visible.
Referenced by __ast_play_and_record(), __ast_read(), __ast_register_translator(), __login_exec(), _sip_show_peer(), add_codec_to_answer(), add_codec_to_sdp(), agent_call(), ast_channel_spy_add(), ast_codec_get_len(), ast_codec_get_samples(), ast_codec_pref_string(), ast_dsp_process(), ast_frame_dump(), ast_openvstream(), ast_rtp_write(), ast_slinfactory_feed(), ast_streamfile(), ast_translator_build_path(), ast_unregister_translator(), ast_writestream(), background_detect_exec(), do_waiting(), eagi_exec(), func_channel_read(), function_iaxpeer(), function_sippeer(), gtalk_show_channels(), iax2_request(), iax2_show_channels(), iax2_show_peer(), iax_show_provisioning(), moh_classes_show(), moh_release(), oh323_rtp_read(), phone_setup(), print_codec_to_cli(), queue_frame_to_spies(), rebuild_matrix(), register_translator(), set_format(), set_peer_capabilities(), show_codecs(), show_codecs_deprecated(), show_file_formats(), show_file_formats_deprecated(), show_image_formats(), show_image_formats_deprecated(), show_translation(), show_translation_deprecated(), sip_request_call(), sip_rtp_read(), socket_process(), xagi_exec(), and zt_read().
00528 { 00529 int x; 00530 char *ret = "unknown"; 00531 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00532 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == format) { 00533 ret = AST_FORMAT_LIST[x].name; 00534 break; 00535 } 00536 } 00537 return ret; 00538 }
char* ast_getformatname_multiple | ( | char * | buf, | |
size_t | size, | |||
int | format | |||
) |
Get the names of a set of formats.
buf | a buffer for the output string | |
size | size of buf (bytes) | |
format | the format (combined IDs of codecs) Prints a list of readable codec names corresponding to "format". ex: for format=AST_FORMAT_GSM|AST_FORMAT_SPEEX|AST_FORMAT_ILBC it will return "0x602 (GSM|SPEEX|ILBC)" |
Definition at line 540 of file frame.c.
References ast_format_list::bits, len, name, and ast_format_list::visible.
Referenced by __sip_show_channels(), _sip_show_peer(), add_sdp(), ast_streamfile(), function_iaxpeer(), function_sippeer(), handle_showchan(), handle_showchan_deprecated(), iax2_bridge(), iax2_show_peer(), process_sdp(), serialize_showchan(), sip_new(), sip_request_call(), sip_show_channel(), sip_show_settings(), and sip_write().
00541 { 00542 int x; 00543 unsigned len; 00544 char *start, *end = buf; 00545 00546 if (!size) 00547 return buf; 00548 snprintf(end, size, "0x%x (", format); 00549 len = strlen(end); 00550 end += len; 00551 size -= len; 00552 start = end; 00553 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00554 if (AST_FORMAT_LIST[x].visible && (AST_FORMAT_LIST[x].bits & format)) { 00555 snprintf(end, size,"%s|",AST_FORMAT_LIST[x].name); 00556 len = strlen(end); 00557 end += len; 00558 size -= len; 00559 } 00560 } 00561 if (start == end) 00562 snprintf(start, size, "nothing)"); 00563 else if (size > 1) 00564 *(end -1) = ')'; 00565 return buf; 00566 }
void ast_parse_allow_disallow | ( | struct ast_codec_pref * | pref, | |
int * | mask, | |||
const char * | list, | |||
int | allowing | |||
) |
Parse an "allow" or "deny" line in a channel or device configuration and update the capabilities mask and pref if provided. Video codecs are not added to codec preference lists, since we can not transcode.
Definition at line 1272 of file frame.c.
References ast_codec_pref_append(), ast_codec_pref_remove(), ast_codec_pref_setsize(), AST_FORMAT_AUDIO_MASK, ast_getformatbyname(), ast_log(), ast_strdupa, format, LOG_DEBUG, LOG_WARNING, option_debug, parse(), and strsep().
Referenced by build_device(), build_peer(), build_user(), gtalk_create_member(), gtalk_load_config(), reload_config(), set_config(), and update_common_options().
01273 { 01274 char *parse = NULL, *this = NULL, *psize = NULL; 01275 int format = 0, framems = 0; 01276 01277 parse = ast_strdupa(list); 01278 while ((this = strsep(&parse, ","))) { 01279 framems = 0; 01280 if ((psize = strrchr(this, ':'))) { 01281 *psize++ = '\0'; 01282 if (option_debug) 01283 ast_log(LOG_DEBUG,"Packetization for codec: %s is %s\n", this, psize); 01284 framems = atoi(psize); 01285 if (framems < 0) 01286 framems = 0; 01287 } 01288 if (!(format = ast_getformatbyname(this))) { 01289 ast_log(LOG_WARNING, "Cannot %s unknown format '%s'\n", allowing ? "allow" : "disallow", this); 01290 continue; 01291 } 01292 01293 if (mask) { 01294 if (allowing) 01295 *mask |= format; 01296 else 01297 *mask &= ~format; 01298 } 01299 01300 /* Set up a preference list for audio. Do not include video in preferences 01301 since we can not transcode video and have to use whatever is offered 01302 */ 01303 if (pref && (format & AST_FORMAT_AUDIO_MASK)) { 01304 if (strcasecmp(this, "all")) { 01305 if (allowing) { 01306 ast_codec_pref_append(pref, format); 01307 ast_codec_pref_setsize(pref, format, framems); 01308 } 01309 else 01310 ast_codec_pref_remove(pref, format); 01311 } else if (!allowing) { 01312 memset(pref, 0, sizeof(*pref)); 01313 } 01314 } 01315 } 01316 }
void ast_smoother_free | ( | struct ast_smoother * | s | ) |
Definition at line 281 of file frame.c.
References free.
Referenced by ast_rtp_codec_setpref(), ast_rtp_destroy(), and ast_rtp_write().
00282 { 00283 free(s); 00284 }
int ast_smoother_get_flags | ( | struct ast_smoother * | smoother | ) |
Definition at line 155 of file frame.c.
References ast_smoother::flags.
00156 { 00157 return s->flags; 00158 }
struct ast_smoother* ast_smoother_new | ( | int | bytes | ) | [read] |
Definition at line 145 of file frame.c.
References ast_malloc, ast_smoother_reset(), and s.
Referenced by ast_rtp_write().
00146 { 00147 struct ast_smoother *s; 00148 if (size < 1) 00149 return NULL; 00150 if ((s = ast_malloc(sizeof(*s)))) 00151 ast_smoother_reset(s, size); 00152 return s; 00153 }
struct ast_frame* ast_smoother_read | ( | struct ast_smoother * | s | ) | [read] |
Definition at line 231 of file frame.c.
References AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), AST_SMOOTHER_FLAG_G729, ast_tvadd(), ast_smoother::data, ast_frame::data, ast_frame::datalen, ast_smoother::delivery, ast_frame::delivery, ast_smoother::f, ast_smoother::flags, ast_smoother::format, ast_smoother::framedata, ast_frame::frametype, ast_smoother::len, len, LOG_WARNING, ast_frame::offset, ast_smoother::opt, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, and ast_frame::subclass.
Referenced by ast_rtp_write().
00232 { 00233 struct ast_frame *opt; 00234 int len; 00235 00236 /* IF we have an optimization frame, send it */ 00237 if (s->opt) { 00238 if (s->opt->offset < AST_FRIENDLY_OFFSET) 00239 ast_log(LOG_WARNING, "Returning a frame of inappropriate offset (%d).\n", 00240 s->opt->offset); 00241 opt = s->opt; 00242 s->opt = NULL; 00243 return opt; 00244 } 00245 00246 /* Make sure we have enough data */ 00247 if (s->len < s->size) { 00248 /* Or, if this is a G.729 frame with VAD on it, send it immediately anyway */ 00249 if (!((s->flags & AST_SMOOTHER_FLAG_G729) && (s->size % 10))) 00250 return NULL; 00251 } 00252 len = s->size; 00253 if (len > s->len) 00254 len = s->len; 00255 /* Make frame */ 00256 s->f.frametype = AST_FRAME_VOICE; 00257 s->f.subclass = s->format; 00258 s->f.data = s->framedata + AST_FRIENDLY_OFFSET; 00259 s->f.offset = AST_FRIENDLY_OFFSET; 00260 s->f.datalen = len; 00261 /* Samples will be improper given VAD, but with VAD the concept really doesn't even exist */ 00262 s->f.samples = len * s->samplesperbyte; /* XXX rounding */ 00263 s->f.delivery = s->delivery; 00264 /* Fill Data */ 00265 memcpy(s->f.data, s->data, len); 00266 s->len -= len; 00267 /* Move remaining data to the front if applicable */ 00268 if (s->len) { 00269 /* In principle this should all be fine because if we are sending 00270 G.729 VAD, the next timestamp will take over anyawy */ 00271 memmove(s->data, s->data + len, s->len); 00272 if (!ast_tvzero(s->delivery)) { 00273 /* If we have delivery time, increment it, otherwise, leave it at 0 */ 00274 s->delivery = ast_tvadd(s->delivery, ast_samp2tv(s->f.samples, 8000)); 00275 } 00276 } 00277 /* Return frame */ 00278 return &s->f; 00279 }
void ast_smoother_reset | ( | struct ast_smoother * | s, | |
int | bytes | |||
) |
Definition at line 139 of file frame.c.
References ast_smoother::size.
Referenced by ast_smoother_new().
00140 { 00141 memset(s, 0, sizeof(*s)); 00142 s->size = size; 00143 }
void ast_smoother_set_flags | ( | struct ast_smoother * | smoother, | |
int | flags | |||
) |
Definition at line 160 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
00161 { 00162 s->flags = flags; 00163 }
int ast_smoother_test_flag | ( | struct ast_smoother * | s, | |
int | flag | |||
) |
Definition at line 165 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
00166 { 00167 return (s->flags & flag); 00168 }
void ast_swapcopy_samples | ( | void * | dst, | |
const void * | src, | |||
int | samples | |||
) |
Definition at line 505 of file frame.c.
Referenced by __ast_smoother_feed(), iax_frame_wrap(), and phone_write_buf().
00506 { 00507 int i; 00508 unsigned short *dst_s = dst; 00509 const unsigned short *src_s = src; 00510 00511 for (i = 0; i < samples; i++) 00512 dst_s[i] = (src_s[i]<<8) | (src_s[i]>>8); 00513 }
struct ast_frame ast_null_frame |
Queueing a null frame is fairly common, so we declare a global null frame object for this purpose instead of having to declare one on the stack
Definition at line 137 of file frame.c.
Referenced by __ast_read(), __oh323_rtp_create(), __oh323_update_info(), agent_new(), agent_read(), ast_channel_masquerade(), ast_channel_setwhentohangup(), ast_do_masquerade(), ast_rtcp_read(), ast_rtp_read(), ast_softhangup_nolock(), ast_udptl_read(), conf_run(), features_read(), gtalk_rtp_read(), handle_request_invite(), handle_response_invite(), iax2_read(), local_read(), mgcp_rtp_read(), oh323_read(), oh323_rtp_read(), process_rfc2833(), process_sdp(), send_dtmf(), sip_rtp_read(), skinny_rtp_read(), and wakeup_sub().