Asterisk internal frame definitions. More...
#include <sys/time.h>
#include "asterisk/frame_defs.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_control_read_action_payload |
struct | ast_control_t38_parameters |
struct | ast_format_list |
Definition of supported media formats (codecs) More... | |
struct | ast_frame |
Data structure associated with a single frame of data. More... | |
union | ast_frame_subclass |
struct | ast_option_header |
struct | oprmode |
Macros | |
#define | AST_FORMAT_ADPCM (1ULL << 5) |
#define | AST_FORMAT_ALAW (1ULL << 3) |
#define | AST_FORMAT_AUDIO_MASK 0xFFFF0000FFFFULL |
#define | AST_FORMAT_FIRST_VIDEO_BIT AST_FORMAT_H261 |
#define | AST_FORMAT_G719 (1ULL << 32) |
#define | AST_FORMAT_G722 (1ULL << 12) |
#define | AST_FORMAT_G723_1 (1ULL << 0) |
#define | AST_FORMAT_G726 (1ULL << 11) |
#define | AST_FORMAT_G726_AAL2 (1ULL << 4) |
#define | AST_FORMAT_G729A (1ULL << 8) |
#define | AST_FORMAT_GSM (1ULL << 1) |
#define | AST_FORMAT_H261 (1ULL << 18) |
#define | AST_FORMAT_H263 (1ULL << 19) |
#define | AST_FORMAT_H263_PLUS (1ULL << 20) |
#define | AST_FORMAT_H264 (1ULL << 21) |
#define | AST_FORMAT_ILBC (1ULL << 10) |
#define | AST_FORMAT_JPEG (1ULL << 16) |
#define | AST_FORMAT_LPC10 (1ULL << 7) |
#define | AST_FORMAT_MAX_TEXT (1ULL << 28) |
#define | AST_FORMAT_MP4_VIDEO (1ULL << 22) |
#define | AST_FORMAT_PNG (1ULL << 17) |
#define | AST_FORMAT_RESERVED (1ULL << 63) |
#define | AST_FORMAT_SIREN14 (1ULL << 14) |
#define | AST_FORMAT_SIREN7 (1ULL << 13) |
#define | AST_FORMAT_SLINEAR (1ULL << 6) |
#define | AST_FORMAT_SLINEAR16 (1ULL << 15) |
#define | AST_FORMAT_SPEEX (1ULL << 9) |
#define | AST_FORMAT_SPEEX16 (1ULL << 33) |
#define | AST_FORMAT_T140 (1ULL << 27) |
#define | AST_FORMAT_T140RED (1ULL << 26) |
#define | AST_FORMAT_TESTLAW (1ULL << 47) |
#define | AST_FORMAT_TEXT_MASK (((1ULL << 30)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK)) |
#define | AST_FORMAT_ULAW (1ULL << 2) |
#define | AST_FORMAT_VIDEO_MASK ((((1ULL << 25)-1) & ~(AST_FORMAT_AUDIO_MASK)) | 0x7FFF000000000000ULL) |
#define | ast_frame_byteswap_be(fr) do { ; } while(0) |
#define | ast_frame_byteswap_le(fr) do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data.ptr, __f->data.ptr, __f->samples); } 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 |
Offset into a frame's data buffer. More... | |
#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 /*! Make sure we keep at least this much handy */ |
#define | AST_MODEM_T38 1 |
#define | AST_MODEM_V150 2 |
#define | AST_OPTION_AUDIO_MODE 4 |
#define | AST_OPTION_CC_AGENT_TYPE 17 |
#define | AST_OPTION_CHANNEL_WRITE 9 |
Handle channel write data If a channel needs to process the data from a func_channel write operation after func_channel_write executes, it can define the setoption callback and process this option. A pointer to an ast_chan_write_info_t will be passed. More... | |
#define | AST_OPTION_DEVICE_NAME 16 |
#define | AST_OPTION_DIGIT_DETECT 14 |
#define | AST_OPTION_ECHOCAN 8 |
#define | AST_OPTION_FAX_DETECT 15 |
#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_FORMAT_READ 11 |
#define | AST_OPTION_FORMAT_WRITE 12 |
#define | AST_OPTION_MAKE_COMPATIBLE 13 |
#define | AST_OPTION_OPRMODE 7 |
#define | AST_OPTION_RELAXDTMF 3 |
#define | AST_OPTION_RXGAIN 6 |
#define | AST_OPTION_SECURE_MEDIA 19 |
#define | AST_OPTION_SECURE_SIGNALING 18 |
#define | AST_OPTION_T38_STATE 10 |
#define | AST_OPTION_TDD 2 |
#define | AST_OPTION_TONE_VERIFY 1 |
#define | AST_OPTION_TXGAIN 5 |
#define | AST_SMOOTHER_FLAG_BE (1 << 1) |
#define | AST_SMOOTHER_FLAG_G729 (1 << 0) |
Functions | |
char * | ast_codec2str (format_t codec) |
Get a name from a format Gets a name from a format. More... | |
format_t | ast_codec_choose (struct ast_codec_pref *pref, format_t 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. More... | |
int | ast_codec_get_len (format_t format, int samples) |
Returns the number of bytes for the number of samples of the given format. More... | |
int | ast_codec_get_samples (struct ast_frame *f) |
Returns the number of samples contained in the frame. More... | |
static int | ast_codec_interp_len (format_t format) |
Gets duration in ms of interpolation frame for a format. More... | |
int | ast_codec_pref_append (struct ast_codec_pref *pref, format_t format) |
Append a audio codec to a preference list, removing it first if it was already there. More... | |
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. More... | |
struct ast_format_list | ast_codec_pref_getsize (struct ast_codec_pref *pref, format_t format) |
Get packet size for codec. More... | |
format_t | ast_codec_pref_index (struct ast_codec_pref *pref, int index) |
Codec located at a particular place in the preference index. More... | |
void | ast_codec_pref_init (struct ast_codec_pref *pref) |
Initialize an audio codec preference to "no preference". More... | |
void | ast_codec_pref_prepend (struct ast_codec_pref *pref, format_t format, int only_if_existing) |
Prepend an audio codec to a preference list, removing it first if it was already there. More... | |
void | ast_codec_pref_remove (struct ast_codec_pref *pref, format_t format) |
Remove audio a codec from a preference list. More... | |
int | ast_codec_pref_setsize (struct ast_codec_pref *pref, format_t format, int framems) |
Set packet size for codec. More... | |
int | ast_codec_pref_string (struct ast_codec_pref *pref, char *buf, size_t size) |
Dump audio codec preference list into a string. More... | |
static force_inline int | ast_format_rate (format_t format) |
Get the sample rate for a given format. More... | |
int | ast_frame_adjust_volume (struct ast_frame *f, int adjustment) |
Adjusts the volume of the audio samples contained in a frame. More... | |
int | ast_frame_clear (struct ast_frame *frame) |
Clear all audio samples from an ast_frame. The frame must be AST_FRAME_VOICE and AST_FORMAT_SLINEAR. More... | |
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. More... | |
void | ast_frame_free (struct ast_frame *fr, int cache) |
Requests a frame to be allocated. More... | |
int | ast_frame_slinear_sum (struct ast_frame *f1, struct ast_frame *f2) |
Sums two frames of audio samples. More... | |
struct ast_frame * | ast_frdup (const struct ast_frame *fr) |
Copies a frame. More... | |
struct ast_frame * | ast_frisolate (struct ast_frame *fr) |
Makes a frame independent of any static storage. More... | |
struct ast_format_list * | ast_get_format_list (size_t *size) |
struct ast_format_list * | ast_get_format_list_index (int index) |
format_t | ast_getformatbyname (const char *name) |
Gets a format from a name. More... | |
char * | ast_getformatname (format_t format) |
Get the name of a format. More... | |
char * | ast_getformatname_multiple (char *buf, size_t size, format_t format) |
Get the names of a set of formats. More... | |
int | ast_parse_allow_disallow (struct ast_codec_pref *pref, format_t *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. More... | |
void | ast_swapcopy_samples (void *dst, const void *src, int samples) |
Variables | |
struct ast_frame | ast_null_frame |
AST_Smoother | |
#define | ast_smoother_feed(s, f) __ast_smoother_feed(s, f, 0) |
#define | ast_smoother_feed_be(s, f) __ast_smoother_feed(s, f, 0) |
#define | ast_smoother_feed_le(s, f) __ast_smoother_feed(s, f, 1) |
struct ast_smoother * | ast_smoother_new (int bytes) |
void | ast_smoother_set_flags (struct ast_smoother *smoother, int flags) |
int | ast_smoother_get_flags (struct ast_smoother *smoother) |
int | ast_smoother_test_flag (struct ast_smoother *s, int flag) |
void | ast_smoother_free (struct ast_smoother *s) |
void | ast_smoother_reset (struct ast_smoother *s, int bytes) |
void | ast_smoother_reconfigure (struct ast_smoother *s, int bytes) |
Reconfigure an existing smoother to output a different number of bytes per frame. More... | |
int | __ast_smoother_feed (struct ast_smoother *s, struct ast_frame *f, int swap) |
struct ast_frame * | ast_smoother_read (struct ast_smoother *s) |
Asterisk internal frame definitions.
Definition in file frame.h.
#define AST_FORMAT_ADPCM (1ULL << 5) |
ADPCM (IMA)
Definition at line 252 of file frame.h.
Referenced by adpcm_sample(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), vox_read(), and vox_write().
#define AST_FORMAT_ALAW (1ULL << 3) |
Raw A-law data (G.711)
Definition at line 248 of file frame.h.
Referenced by alaw_sample(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_process(), cb_events(), codec_ast2skinny(), codec_skinny2ast(), dahdi_new(), dahdi_read(), dahdi_write(), find_transcoders(), is_encoder(), misdn_read(), oh323_rtp_read(), pcm_seek(), pcm_write(), and start_rtp().
#define AST_FORMAT_AUDIO_MASK 0xFFFF0000FFFFULL |
Maximum audio mask
Definition at line 274 of file frame.h.
Referenced by add_sdp(), ast_best_codec(), ast_channel_make_compatible_helper(), ast_codec_choose(), ast_filehelper(), ast_openstream_full(), ast_parse_allow_disallow(), ast_playstream(), ast_request(), ast_rtp_read(), ast_translate_available_formats(), ast_translator_best_choice(), ast_write(), ast_writestream(), begin_dial_channel(), complete_trans_path_choice(), filestream_close(), func_channel_read(), generator_force(), gtalk_rtp_read(), handle_cli_core_show_translation(), jingle_rtp_read(), oh323_request(), phone_read(), process_sdp(), set_format(), show_codecs(), sip_call(), sip_request_call(), sip_rtp_read(), sip_write(), skinny_request(), transmit_connect(), transmit_connect_with_sdp(), transmit_modify_request(), and transmit_modify_with_sdp().
#define AST_FORMAT_FIRST_VIDEO_BIT AST_FORMAT_H261 |
Definition at line 281 of file frame.h.
Referenced by ast_openvstream().
#define AST_FORMAT_G719 (1ULL << 32) |
G.719 (64 kbps assumed)
Definition at line 299 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_write(), g719read(), g719write(), and process_sdp_a_audio().
#define AST_FORMAT_G722 (1ULL << 12) |
G.722
Definition at line 266 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_raw_write(), au_seek(), g722_sample(), pcm_read(), and rtp_get_rate().
#define AST_FORMAT_G723_1 (1ULL << 0) |
G.723.1 compression
Definition at line 242 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_rtp_write(), codec_ast2skinny(), codec_skinny2ast(), dahdi_destroy(), dahdi_translate(), g723_read(), g723_write(), load_module(), phone_request(), phone_setup(), phone_write(), and start_rtp().
#define AST_FORMAT_G726 (1ULL << 11) |
ADPCM (G.726, 32kbps, RFC3551 codeword packing)
Definition at line 264 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_rtp_codecs_payloads_set_rtpmap_type_rate(), g726_read(), g726_sample(), and g726_write().
#define AST_FORMAT_G726_AAL2 (1ULL << 4) |
ADPCM (G.726, 32kbps, AAL2 codeword packing)
Definition at line 250 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_rtp_codecs_payloads_set_rtpmap_type_rate(), ast_rtp_lookup_mime_subtype2(), codec_ast2skinny(), codec_skinny2ast(), and setup_rtp_connection().
#define AST_FORMAT_G729A (1ULL << 8) |
G.729A audio
Definition at line 258 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(), dahdi_destroy(), dahdi_translate(), g729_read(), g729_write(), load_module(), phone_request(), phone_setup(), phone_write(), and start_rtp().
#define AST_FORMAT_GSM (1ULL << 1) |
GSM compression
Definition at line 244 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), gsm_read(), gsm_sample(), gsm_write(), wav_read(), and wav_write().
#define AST_FORMAT_H261 (1ULL << 18) |
H.261 Video
Definition at line 280 of file frame.h.
Referenced by codec_ast2skinny(), codec_skinny2ast(), and h261_encap().
#define AST_FORMAT_H263 (1ULL << 19) |
H.263 Video
Definition at line 283 of file frame.h.
Referenced by codec_ast2skinny(), codec_skinny2ast(), h263_encap(), h263_read(), and h263_write().
#define AST_FORMAT_H263_PLUS (1ULL << 20) |
#define AST_FORMAT_H264 (1ULL << 21) |
H.264 Video
Definition at line 287 of file frame.h.
Referenced by h264_encap(), h264_read(), and h264_write().
#define AST_FORMAT_ILBC (1ULL << 10) |
iLBC Free Compression
Definition at line 262 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(), ilbc_read(), ilbc_sample(), and ilbc_write().
#define AST_FORMAT_JPEG (1ULL << 16) |
JPEG Images
Definition at line 276 of file frame.h.
Referenced by jpeg_read_image(), and jpeg_write_image().
#define AST_FORMAT_LPC10 (1ULL << 7) |
LPC10, 180 samples/frame
Definition at line 256 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), and lpc10_sample().
#define AST_FORMAT_MP4_VIDEO (1ULL << 22) |
#define AST_FORMAT_PNG (1ULL << 17) |
#define AST_FORMAT_RESERVED (1ULL << 63) |
#define AST_FORMAT_SIREN14 (1ULL << 14) |
G.722.1 Annex C (also known as Siren14, 48kbps assumed)
Definition at line 270 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_write(), process_sdp_a_audio(), siren14read(), and siren14write().
#define AST_FORMAT_SIREN7 (1ULL << 13) |
G.722.1 (also known as Siren7, 32kbps assumed)
Definition at line 268 of file frame.h.
Referenced by add_codec_to_sdp(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_write(), process_sdp_a_audio(), siren7read(), and siren7write().
#define AST_FORMAT_SLINEAR (1ULL << 6) |
Raw 16-bit Signed Linear (8000 Hz) PCM
Definition at line 254 of file frame.h.
Referenced by __ast_play_and_record(), _moh_class_malloc(), action_originate(), agent_new(), alsa_new(), alsa_read(), alsa_request(), ast_audiohook_read_frame(), ast_best_codec(), ast_channel_make_compatible_helper(), ast_channel_start_silence_generator(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_call_progress(), ast_dsp_noise(), ast_dsp_process(), ast_dsp_silence(), ast_frame_adjust_volume(), ast_frame_slinear_sum(), ast_rtp_read(), ast_slinfactory_init(), ast_slinfactory_init_rate(), ast_speech_new(), ast_write(), audio_audiohook_write_list(), audiohook_read_frame_both(), audiohook_read_frame_single(), background_detect_exec(), bridge_request(), build_conf(), chanspy_exec(), conf_run(), dahdi_read(), dahdi_translate(), dahdi_write(), dahdiscan_exec(), dictate_exec(), do_notify(), do_waiting(), eagi_exec(), extenspy_exec(), fax_generator_generate(), find_transcoders(), generic_fax_exec(), generic_recall(), get_rate_change_result(), handle_jack_audio(), handle_recordfile(), handle_speechcreate(), handle_speechrecognize(), iax_frame_wrap(), ices_exec(), is_encoder(), isAnsweringMachine(), jack_exec(), jack_hook_callback(), linear_alloc(), linear_generator(), load_module(), load_moh_classes(), local_ast_moh_start(), measurenoise(), meetme_menu_admin_extended(), mixmonitor_thread(), mp3_exec(), nbs_request(), nbs_xwrite(), NBScat_exec(), new_outgoing(), ogg_vorbis_read(), ogg_vorbis_write(), oh323_rtp_read(), orig_app(), orig_exten(), originate_exec(), oss_new(), oss_read(), oss_request(), parkandannounce_exec(), phone_new(), phone_read(), phone_request(), phone_setup(), phone_write(), pitchshift_cb(), play_sound_file(), playtones_alloc(), playtones_generator(), record_exec(), send_waveform_to_channel(), silence_generator_generate(), slin8_sample(), slinear_read(), slinear_write(), socket_process(), softmix_bridge_join(), softmix_bridge_write(), spandsp_fax_read(), speech_background(), spy_generate(), tonepair_alloc(), tonepair_generator(), transmit_audio(), wav_read(), and wav_write().
#define AST_FORMAT_SLINEAR16 (1ULL << 15) |
Raw 16-bit Signed Linear (16000 Hz) PCM
Definition at line 272 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_read(), ast_slinfactory_init_rate(), console_new(), get_rate_change_result(), pitchshift_cb(), slin16_sample(), slinear_read(), slinear_write(), softmix_bridge_join(), softmix_bridge_write(), stream_monitor(), wav_open(), wav_read(), wav_rewrite(), and wav_write().
#define AST_FORMAT_SPEEX (1ULL << 9) |
SpeeX Free Compression
Definition at line 260 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), ast_rtp_write(), and speex_sample().
#define AST_FORMAT_SPEEX16 (1ULL << 33) |
SpeeX Wideband (16kHz) Free Compression
Definition at line 301 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_samples(), ast_format_rate(), ast_rtp_write(), and speex16_sample().
#define AST_FORMAT_T140 (1ULL << 27) |
T.140 Text format - ITU T.140, RFC 4103
Definition at line 294 of file frame.h.
Referenced by add_tcodec_to_sdp(), ast_rtp_read(), and ast_write().
#define AST_FORMAT_T140RED (1ULL << 26) |
T.140 RED Text format RFC 4103
Definition at line 292 of file frame.h.
Referenced by add_tcodec_to_sdp(), ast_rtp_read(), process_sdp(), and rtp_red_init().
#define AST_FORMAT_TESTLAW (1ULL << 47) |
Raw mu-law data (G.711)
Definition at line 303 of file frame.h.
Referenced by ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), and ast_dsp_process().
#define AST_FORMAT_TEXT_MASK (((1ULL << 30)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK)) |
Definition at line 297 of file frame.h.
Referenced by add_sdp(), ast_request(), show_codecs(), sip_new(), and sip_rtp_read().
#define AST_FORMAT_ULAW (1ULL << 2) |
Raw mu-law data (G.711)
Definition at line 246 of file frame.h.
Referenced by __adsi_transmit_messages(), adsi_careful_send(), adsi_transmit_message_full(), alarmreceiver_exec(), ast_best_codec(), ast_codec_get_len(), ast_codec_get_samples(), ast_dsp_process(), calc_energy(), codec_ast2skinny(), codec_skinny2ast(), conf_run(), dahdi_new(), dahdi_read(), dahdi_translate(), dahdi_write(), find_transcoders(), is_encoder(), load_module(), milliwatt_generate(), oh323_rtp_read(), old_milliwatt_exec(), phone_request(), phone_setup(), phone_write(), send_tone_burst(), start_rtp(), and ulaw_sample().
#define AST_FORMAT_VIDEO_MASK ((((1ULL << 25)-1) & ~(AST_FORMAT_AUDIO_MASK)) | 0x7FFF000000000000ULL) |
Definition at line 290 of file frame.h.
Referenced by add_sdp(), ast_filehelper(), ast_openvstream(), ast_request(), ast_rtp_read(), ast_translate_available_formats(), dialog_initialize_rtp(), filestream_close(), func_channel_read(), gtalk_new(), gtalk_rtp_read(), jingle_new(), jingle_rtp_read(), show_codecs(), sip_new(), and sip_rtp_read().
#define ast_frame_byteswap_be | ( | fr | ) | do { ; } while(0) |
Definition at line 616 of file frame.h.
Referenced by ast_rtp_read(), and socket_process().
#define ast_frame_byteswap_le | ( | fr | ) | do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data.ptr, __f->data.ptr, __f->samples); } while(0) |
Definition at line 615 of file frame.h.
Referenced by phone_read().
#define AST_FRAME_DTMF AST_FRAME_DTMF_END |
Definition at line 128 of file frame.h.
Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_play_and_record(), action_atxfer(), action_dahdidialoffhook(), agent_ack_sleep(), analog_ss_thread(), ast_audiohook_write_list(), ast_dsp_process(), ast_generic_bridge(), ast_jb_put(), background_detect_exec(), cb_events(), channel_spy(), cli_console_dial(), conf_run(), console_dial(), dahdi_bridge(), dictate_exec(), disa_exec(), do_immediate_setup(), echo_exec(), eivr_comm(), feature_request_and_dial(), gtalk_handle_dtmf(), handle_recordfile(), handle_request(), handle_request_info(), handle_speechrecognize(), iax2_bridge(), jingle_handle_dtmf(), keypad_digit(), mgcp_rtp_read(), misdn_bridge(), mp3_exec(), NBScat_exec(), oh323_rtp_read(), phone_exception(), pri_dchannel(), process_ast_dsp(), receive_dtmf_digits(), record_exec(), send_waveform_to_channel(), sip_rtp_read(), speech_background(), unistim_do_senddigit(), unistim_senddigit_end(), volume_callback(), wait_for_answer(), and wait_for_winner().
#define AST_FRAME_SET_BUFFER | ( | fr, | |
_base, | |||
_ofs, | |||
_datalen | |||
) |
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 183 of file frame.h.
Referenced by fax_generator_generate(), g719read(), g723_read(), g726_read(), g729_read(), gsm_read(), h263_read(), h264_read(), ilbc_read(), ogg_vorbis_read(), pcm_read(), siren14read(), siren7read(), slinear_read(), spandsp_fax_read(), t38_tx_packet_handler(), vox_read(), and wav_read().
#define ast_frfree | ( | fr | ) | ast_frame_free(fr, 1) |
Definition at line 583 of file frame.h.
Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_answer(), __ast_play_and_record(), __ast_queue_frame(), __ast_read(), __ast_request_and_dial(), adsi_careful_send(), agent_ack_sleep(), agent_read(), analog_ss_thread(), ast_audiohook_read_frame(), ast_autoservice_stop(), ast_bridge_call(), ast_bridge_handle_trip(), ast_channel_clear_softhangup(), ast_channel_destructor(), ast_dsp_process(), ast_framehook_attach(), ast_generic_bridge(), ast_indicate_data(), ast_jb_destroy(), ast_jb_put(), ast_queue_cc_frame(), ast_readaudio_callback(), ast_readvideo_callback(), ast_recvtext(), ast_rtp_write(), ast_safe_sleep_conditional(), ast_send_image(), ast_slinfactory_destroy(), ast_slinfactory_feed(), ast_slinfactory_flush(), ast_slinfactory_read(), ast_tonepair(), ast_transfer(), ast_translate(), ast_udptl_bridge(), ast_waitfordigit_full(), ast_write(), ast_writestream(), async_agi_read_frame(), async_wait(), audio_audiohook_write_list(), autoservice_run(), background_detect_exec(), bridge_handle_dtmf(), calc_cost(), channel_spy(), check_bridge(), conf_flush(), conf_free(), conf_run(), create_jb(), dahdi_accept_r2_call_exec(), dahdi_bridge(), dahdi_read(), dial_exec_full(), dictate_exec(), disa_exec(), disable_t38(), do_idle_thread(), do_waiting(), echo_exec(), eivr_comm(), feature_request_and_dial(), find_cache(), framehook_detach_and_destroy(), gen_generate(), generic_fax_exec(), handle_cli_file_convert(), handle_recordfile(), handle_speechrecognize(), iax2_bridge(), ices_exec(), isAnsweringMachine(), jack_exec(), jb_empty_and_reset_adaptive(), jb_empty_and_reset_fixed(), jb_get_and_deliver(), local_bridge_loop(), manage_parked_call(), measurenoise(), moh_files_generator(), monitor_dial(), mp3_exec(), multicast_rtp_write(), NBScat_exec(), read_frame(), receive_dtmf_digits(), receivefax_t38_init(), record_exec(), recordthread(), remote_bridge_loop(), run_agi(), send_tone_burst(), send_waveform_to_channel(), sendfax_t38_init(), sendurl_exec(), session_destroy(), sip_read(), sip_rtp_read(), speech_background(), spy_generate(), transmit_audio(), transmit_t38(), wait_for_answer(), wait_for_hangup(), wait_for_winner(), waitforring_exec(), and waitstream_core().
#define AST_FRIENDLY_OFFSET 64 |
Offset into a frame's data buffer.
By providing some "empty" space prior to the actual data of an ast_frame, this gives any consumer of the frame ample space to prepend other necessary information without having to create a new buffer.
As an example, RTP can use the data from an ast_frame and simply prepend the RTP header information into the space provided by AST_FRIENDLY_OFFSET instead of having to create a new buffer with the necessary space allocated.
Definition at line 204 of file frame.h.
Referenced by __get_from_jb(), adjust_frame_for_plc(), 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(), dahdi_decoder_frameout(), dahdi_encoder_frameout(), dahdi_read(), fax_generator_generate(), g719read(), 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_cn_rfc3389(), send_tone_burst(), send_waveform_to_channel(), siren14read(), siren7read(), slinear_read(), sms_generate(), spandsp_fax_read(), tonepair_generator(), vox_read(), and wav_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 230 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 232 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 222 of file frame.h.
Referenced by ast_channel_sendurl(), ast_frame_dump(), and sip_sendhtml().
#define AST_MALLOCD_DATA (1 << 1) |
Need the data be free'd?
Definition at line 210 of file frame.h.
Referenced by __frame_free(), ast_cc_build_frame(), ast_frisolate(), and create_video_frame().
#define AST_MALLOCD_HDR (1 << 0) |
Need the header be free'd?
Definition at line 208 of file frame.h.
Referenced by __frame_free(), ast_frame_header_new(), ast_frdup(), ast_frisolate(), and create_video_frame().
#define AST_MALLOCD_SRC (1 << 2) |
Need the source be free'd? (haha!)
Definition at line 212 of file frame.h.
Referenced by __frame_free(), ast_frisolate(), and speex_callback().
#define AST_MIN_OFFSET 32 /*! Make sure we keep at least this much handy */ |
Definition at line 205 of file frame.h.
Referenced by __ast_smoother_feed().
#define AST_MODEM_T38 1 |
T.38 Fax-over-IP
Definition at line 216 of file frame.h.
Referenced by ast_frame_dump(), ast_udptl_write(), generic_fax_exec(), t38_tx_packet_handler(), transmit_t38(), and udptl_rx_packet().
#define AST_MODEM_V150 2 |
#define AST_OPTION_AUDIO_MODE 4 |
Set (or clear) Audio (Not-Clear) Mode Option data is a single signed char value 0 or 1
Definition at line 453 of file frame.h.
Referenced by ast_bridge_call(), dahdi_hangup(), dahdi_setoption(), and iax2_setoption().
#define AST_OPTION_CC_AGENT_TYPE 17 |
Get the CC agent type from the channel (Read only) Option data is a character buffer of suitable length
Definition at line 520 of file frame.h.
Referenced by ast_channel_get_cc_agent_type(), and dahdi_queryoption().
#define AST_OPTION_CHANNEL_WRITE 9 |
Handle channel write data If a channel needs to process the data from a func_channel write operation after func_channel_write executes, it can define the setoption callback and process this option. A pointer to an ast_chan_write_info_t will be passed.
Definition at line 484 of file frame.h.
Referenced by func_channel_write(), and local_setoption().
#define AST_OPTION_DEVICE_NAME 16 |
Get the device name from the channel (Read only) Option data is a character buffer of suitable length
Definition at line 516 of file frame.h.
Referenced by ast_channel_get_device_name(), and sip_queryoption().
#define AST_OPTION_DIGIT_DETECT 14 |
Get or set the digit detection state of the channel Option data is a single signed char value 0 or 1
Definition at line 508 of file frame.h.
Referenced by ast_bridge_call(), dahdi_queryoption(), dahdi_setoption(), iax2_setoption(), rcvfax_exec(), sip_queryoption(), sip_setoption(), and sndfax_exec().
#define AST_OPTION_ECHOCAN 8 |
Explicitly enable or disable echo cancelation for the given channel Option data is a single signed char value 0 or 1
Definition at line 476 of file frame.h.
Referenced by dahdi_setoption().
#define AST_OPTION_FAX_DETECT 15 |
Get or set the fax tone detection state of the channel Option data is a single signed char value 0 or 1
Definition at line 512 of file frame.h.
Referenced by ast_bridge_call(), dahdi_queryoption(), dahdi_setoption(), iax2_setoption(), rcvfax_exec(), and sndfax_exec().
#define AST_OPTION_FLAG_REQUEST 0 |
Definition at line 431 of file frame.h.
Referenced by ast_bridge_call(), and iax2_setoption().
#define AST_OPTION_FORMAT_READ 11 |
Request that the channel driver deliver frames in a specific format Option data is a format_t
Definition at line 494 of file frame.h.
Referenced by set_format(), and sip_setoption().
#define AST_OPTION_FORMAT_WRITE 12 |
Request that the channel driver be prepared to accept frames in a specific format Option data is a format_t
Definition at line 498 of file frame.h.
Referenced by set_format(), and sip_setoption().
#define AST_OPTION_MAKE_COMPATIBLE 13 |
Request that the channel driver make two channels of the same tech type compatible if possible Option data is an ast_channel
Definition at line 504 of file frame.h.
Referenced by ast_channel_make_compatible_helper(), and sip_setoption().
#define AST_OPTION_OPRMODE 7 |
Definition at line 469 of file frame.h.
Referenced by dahdi_setoption(), dial_exec_full(), and iax2_setoption().
#define AST_OPTION_RELAXDTMF 3 |
Relax the parameters for DTMF reception (mainly for radio use) Option data is a single signed char value 0 or 1
Definition at line 449 of file frame.h.
Referenced by ast_bridge_call(), dahdi_setoption(), and iax2_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 463 of file frame.h.
Referenced by dahdi_setoption(), func_channel_write_real(), iax2_setoption(), play_record_review(), reset_volumes(), set_talk_volume(), and vm_forwardoptions().
#define AST_OPTION_SECURE_MEDIA 19 |
Definition at line 525 of file frame.h.
Referenced by iax2_queryoption(), iax2_setoption(), set_security_requirements(), sip_queryoption(), and sip_setoption().
#define AST_OPTION_SECURE_SIGNALING 18 |
Get or set the security options on a channel Option data is an integer value of 0 or 1
Definition at line 524 of file frame.h.
Referenced by iax2_queryoption(), iax2_setoption(), set_security_requirements(), sip_queryoption(), and sip_setoption().
#define AST_OPTION_T38_STATE 10 |
Definition at line 490 of file frame.h.
Referenced by ast_channel_get_t38_state(), local_queryoption(), and sip_queryoption().
#define AST_OPTION_TDD 2 |
Put a compatible channel into TDD (TTY for the hearing-impared) mode Option data is a single signed char value 0 or 1
Definition at line 445 of file frame.h.
Referenced by analog_hangup(), ast_bridge_call(), dahdi_hangup(), dahdi_setoption(), handle_tddmode(), and iax2_setoption().
#define AST_OPTION_TONE_VERIFY 1 |
Verify touchtones by muting audio transmission (and reception) and verify the tone is still present Option data is a single signed char value 0 or 1
Definition at line 441 of file frame.h.
Referenced by analog_hangup(), ast_bridge_call(), conf_run(), dahdi_hangup(), dahdi_setoption(), iax2_setoption(), and try_calling().
#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 458 of file frame.h.
Referenced by common_exec(), dahdi_setoption(), func_channel_write_real(), iax2_setoption(), reset_volumes(), and set_listen_volume().
#define ast_smoother_feed | ( | s, | |
f | |||
) | __ast_smoother_feed(s, f, 0) |
Definition at line 686 of file frame.h.
Referenced by ast_rtp_write(), and generic_fax_exec().
#define ast_smoother_feed_be | ( | s, | |
f | |||
) | __ast_smoother_feed(s, f, 0) |
Definition at line 691 of file frame.h.
Referenced by ast_rtp_write().
#define ast_smoother_feed_le | ( | s, | |
f | |||
) | __ast_smoother_feed(s, f, 1) |
#define AST_SMOOTHER_FLAG_BE (1 << 1) |
Definition at line 428 of file frame.h.
Referenced by ast_rtp_write().
#define AST_SMOOTHER_FLAG_G729 (1 << 0) |
Definition at line 427 of file frame.h.
Referenced by __ast_smoother_feed(), ast_smoother_read(), and smoother_frame_feed().
anonymous enum |
Enumerator | |
---|---|
AST_FRFLAG_HAS_TIMING_INFO |
This frame contains valid timing information |
Definition at line 130 of file frame.h.
Internal control frame subtype field values.
Enumerator | |
---|---|
AST_CONTROL_HANGUP |
Other end has hungup |
AST_CONTROL_RING |
Local ring |
AST_CONTROL_RINGING |
Remote end is ringing |
AST_CONTROL_ANSWER |
Remote end has answered |
AST_CONTROL_BUSY |
Remote end is busy |
AST_CONTROL_TAKEOFFHOOK |
Make it go off hook |
AST_CONTROL_OFFHOOK |
Line is off hook |
AST_CONTROL_CONGESTION |
Congestion (circuits busy) |
AST_CONTROL_FLASH |
Flash hook |
AST_CONTROL_WINK |
Wink |
AST_CONTROL_OPTION |
Set a low-level option |
AST_CONTROL_RADIO_KEY |
Key Radio |
AST_CONTROL_RADIO_UNKEY |
Un-Key Radio |
AST_CONTROL_PROGRESS |
Indicate PROGRESS |
AST_CONTROL_PROCEEDING |
Indicate CALL PROCEEDING |
AST_CONTROL_HOLD |
Indicate call is placed on hold |
AST_CONTROL_UNHOLD |
Indicate call is left from hold |
AST_CONTROL_VIDUPDATE |
Indicate video frame update |
_XXX_AST_CONTROL_T38 |
T38 state change request/notification
|
AST_CONTROL_SRCUPDATE |
Indicate source of media has changed |
AST_CONTROL_TRANSFER |
Indicate status of a transfer request |
AST_CONTROL_CONNECTED_LINE |
Indicate connected line has changed |
AST_CONTROL_REDIRECTING |
Indicate redirecting id has changed |
AST_CONTROL_T38_PARAMETERS |
T38 state change request/notification with parameters |
AST_CONTROL_CC |
Indication that Call completion service is possible |
AST_CONTROL_SRCCHANGE |
Media source has changed and requires a new RTP SSRC |
AST_CONTROL_READ_ACTION |
Tell ast_read to take a specific action |
AST_CONTROL_AOC |
Advice of Charge with encoded generic AOC payload |
AST_CONTROL_END_OF_Q |
Indicate that this position was the end of the channel queue for a softhangup. |
AST_CONTROL_INCOMPLETE |
Indication that the extension dialed is incomplete |
AST_CONTROL_UPDATE_RTP_PEER |
Interrupt the bridge and have it update the peer |
Definition at line 319 of file frame.h.
enum ast_control_t38 |
Definition at line 384 of file frame.h.
enum ast_control_t38_rate |
Enumerator | |
---|---|
AST_T38_RATE_2400 | |
AST_T38_RATE_4800 | |
AST_T38_RATE_7200 | |
AST_T38_RATE_9600 | |
AST_T38_RATE_12000 | |
AST_T38_RATE_14400 |
Definition at line 393 of file frame.h.
Enumerator | |
---|---|
AST_T38_RATE_MANAGEMENT_TRANSFERRED_TCF | |
AST_T38_RATE_MANAGEMENT_LOCAL_TCF |
Definition at line 406 of file frame.h.
enum ast_control_transfer |
Enumerator | |
---|---|
AST_TRANSFER_SUCCESS |
Transfer request on the channel worked |
AST_TRANSFER_FAILED |
Transfer request on the channel failed |
Definition at line 422 of file frame.h.
enum ast_frame_type |
Frame types.
Definition at line 101 of file frame.h.
int __ast_smoother_feed | ( | struct ast_smoother * | s, |
struct ast_frame * | f, | ||
int | swap | ||
) |
Definition at line 208 of file frame.c.
References AST_FRAME_VOICE, ast_getformatname(), ast_log(), AST_MIN_OFFSET, AST_SMOOTHER_FLAG_G729, ast_swapcopy_samples(), ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, f, ast_smoother::flags, ast_smoother::format, ast_frame::frametype, ast_smoother::len, LOG_WARNING, ast_frame::offset, ast_smoother::opt, ast_smoother::opt_needs_swap, ast_frame::ptr, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, smoother_frame_feed(), SMOOTHER_SIZE, and ast_frame::subclass.
char* ast_codec2str | ( | format_t | 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 660 of file frame.c.
References ARRAY_LEN, and ast_format_list::desc.
Referenced by moh_alloc(), show_codec_n(), and show_codecs().
format_t ast_codec_choose | ( | struct ast_codec_pref * | pref, |
format_t | 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.
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 ARRAY_LEN, ast_best_codec(), ast_debug, AST_FORMAT_AUDIO_MASK, ast_format_list::bits, and ast_codec_pref::order.
Referenced by __oh323_new(), gtalk_new(), jingle_new(), process_sdp(), sip_new(), and socket_process().
int ast_codec_get_len | ( | format_t | format, |
int | samples | ||
) |
Returns the number of bytes for the number of samples of the given format.
Definition at line 1532 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G719, 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_SIREN14, AST_FORMAT_SIREN7, AST_FORMAT_SLINEAR, AST_FORMAT_SLINEAR16, AST_FORMAT_TESTLAW, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), len(), and LOG_WARNING.
Referenced by moh_generate(), and monmp3thread().
int ast_codec_get_samples | ( | struct ast_frame * | f | ) |
Returns the number of samples contained in the frame.
Definition at line 1470 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G719, 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_SIREN14, AST_FORMAT_SIREN7, AST_FORMAT_SLINEAR, AST_FORMAT_SLINEAR16, AST_FORMAT_SPEEX, AST_FORMAT_SPEEX16, AST_FORMAT_TESTLAW, AST_FORMAT_ULAW, ast_getformatname_multiple(), ast_log(), ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, g723_samples(), LOG_WARNING, ast_frame::ptr, speex_samples(), and ast_frame::subclass.
Referenced by ast_rtp_read(), dahdi_encoder_frameout(), isAnsweringMachine(), moh_generate(), schedule_delivery(), socket_process(), and socket_process_meta().
|
inlinestatic |
Gets duration in ms of interpolation frame for a format.
Definition at line 782 of file frame.h.
References AST_FORMAT_ILBC.
Referenced by __get_from_jb(), and jb_get_and_deliver().
int ast_codec_pref_append | ( | struct ast_codec_pref * | pref, |
format_t | format | ||
) |
Append a audio codec to a preference list, removing it first if it was already there.
Append a audio codec to a preference list, removing it first if it was already there.
Definition at line 1099 of file frame.c.
References ARRAY_LEN, ast_codec_pref_remove(), and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow().
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.
pref | A codec preference list structure |
buf | A string denoting codec preference, appropriate for use in line transmission |
size | Size of buf |
right | Boolean: if 0, convert from buf to pref; if 1, convert from pref to buf. |
Definition at line 1002 of file frame.c.
References ast_codec_pref::order.
Referenced by check_access(), create_addr(), dump_prefs(), and socket_process().
struct ast_format_list ast_codec_pref_getsize | ( | struct ast_codec_pref * | pref, |
format_t | format | ||
) |
Get packet size for codec.
Definition at line 1205 of file frame.c.
References ARRAY_LEN, ast_getformatname(), ast_log(), AST_LOG_WARNING, 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_instance_bridge(), ast_rtp_write(), handle_open_receive_channel_ack_message(), skinny_set_rtp_peer(), and transmit_connect().
format_t ast_codec_pref_index | ( | struct ast_codec_pref * | pref, |
int | index | ||
) |
Codec located at a particular place in the preference index.
Definition at line 1061 of file frame.c.
References ast_format_list::bits, and ast_codec_pref::order.
Referenced by _sip_show_peer(), _skinny_show_line(), add_sdp(), ast_codec_pref_string(), function_iaxpeer(), function_sippeer(), gtalk_invite(), handle_cli_iax2_show_peer(), jingle_accept_call(), print_codec_to_cli(), and socket_process().
void ast_codec_pref_init | ( | struct ast_codec_pref * | pref | ) |
Initialize an audio codec preference to "no preference".
void ast_codec_pref_prepend | ( | struct ast_codec_pref * | pref, |
format_t | format, | ||
int | only_if_existing | ||
) |
Prepend an audio codec to a preference list, removing it first if it was already there.
Prepend an audio codec to a preference list, removing it first if it was already there.
Definition at line 1125 of file frame.c.
References ARRAY_LEN, ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by create_addr().
void ast_codec_pref_remove | ( | struct ast_codec_pref * | pref, |
format_t | format | ||
) |
Remove audio a codec from a preference list.
Remove audio a codec from a preference list.
Definition at line 1073 of file frame.c.
References ARRAY_LEN, ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by ast_codec_pref_append(), and ast_parse_allow_disallow().
int ast_codec_pref_setsize | ( | struct ast_codec_pref * | pref, |
format_t | format, | ||
int | framems | ||
) |
Set packet size for codec.
Definition at line 1167 of file frame.c.
References ARRAY_LEN, 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_a_audio().
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 1025 of file frame.c.
References ast_codec_pref_index(), and ast_getformatname().
Referenced by dump_prefs(), and socket_process().
|
static |
Get the sample rate for a given format.
Definition at line 809 of file frame.h.
References AST_FORMAT_G719, AST_FORMAT_G722, AST_FORMAT_SIREN14, AST_FORMAT_SIREN7, AST_FORMAT_SLINEAR16, and AST_FORMAT_SPEEX16.
Referenced by __ast_read(), __get_from_jb(), ast_read_generator_actions(), ast_readaudio_callback(), ast_readvideo_callback(), ast_rtp_read(), ast_smoother_read(), ast_translate(), ast_translator_best_choice(), ast_write(), calc_cost(), calc_timestamp(), generator_force(), get_rate_change_result(), handle_cli_core_show_translation(), pitch_shift(), rtp_get_rate(), and schedule_delivery().
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 1584 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_divide(), ast_slinear_saturated_multiply(), ast_frame_subclass::codec, ast_frame::data, ast_frame::frametype, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.
Referenced by audiohook_read_frame_single(), audiohook_volume_callback(), conf_run(), and volume_callback().
int ast_frame_clear | ( | struct ast_frame * | frame | ) |
Clear all audio samples from an ast_frame. The frame must be AST_FRAME_VOICE and AST_FORMAT_SLINEAR.
Definition at line 1629 of file frame.c.
References AST_LIST_NEXT, ast_frame::data, ast_frame::datalen, ast_frame::next, and ast_frame::ptr.
Referenced by ast_audiohook_write_frame(), and mute_callback().
void ast_frame_dump | ( | const char * | name, |
struct ast_frame * | f, | ||
char * | prefix | ||
) |
Dump a frame for debugging purposes
Definition at line 778 of file frame.c.
References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_UNHOLD, AST_CONTROL_WINK, ast_copy_string(), 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_T38_NEGOTIATED, AST_T38_REFUSED, AST_T38_REQUEST_NEGOTIATE, AST_T38_REQUEST_TERMINATE, AST_T38_TERMINATED, ast_verbose(), ast_frame_subclass::codec, COLOR_BLACK, COLOR_BRCYAN, COLOR_BRGREEN, COLOR_BRMAGENTA, COLOR_BRRED, COLOR_YELLOW, ast_frame::data, ast_frame::datalen, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::ptr, ast_control_t38_parameters::request_response, ast_frame::subclass, and term_color().
Referenced by __ast_read(), and ast_write().
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.
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 |
Frees a frame or list of frames
fr | Frame to free, or head of list to free |
cache | Whether to consider this frame for frame caching |
Definition at line 375 of file frame.c.
References __frame_free(), AST_LIST_NEXT, and ast_frame::next.
Referenced by mixmonitor_thread().
Sums two frames of audio samples.
f1 | The first frame (which will contain the result) |
f2 | The second frame |
The frames must be AST_FRAME_VOICE and must contain AST_FORMAT_SLINEAR samples, and must contain the same number of samples.
Definition at line 1607 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_add(), ast_frame_subclass::codec, ast_frame::data, ast_frame::frametype, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.
Copies a frame.
fr | frame to copy Duplicates a frame – should only rarely be used, typically frisolate is good enough |
Definition at line 474 of file frame.c.
References ast_calloc_cache, ast_copy_flags, AST_FRFLAG_HAS_TIMING_INFO, AST_FRIENDLY_OFFSET, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_MALLOCD_HDR, ast_threadstorage_get(), ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, ast_frame::delivery, frame_cache, frames, ast_frame::frametype, ast_frame::len, len(), ast_frame_cache::list, ast_frame::mallocd, ast_frame::mallocd_hdr_len, ast_frame::offset, ast_frame::ptr, ast_frame::samples, ast_frame::seqno, ast_frame_cache::size, ast_frame::src, ast_frame::subclass, ast_frame::ts, and ast_frame::uint32.
Referenced by __ast_queue_frame(), ast_frisolate(), ast_indicate_data(), ast_jb_put(), ast_rtp_write(), ast_slinfactory_feed(), audiohook_read_frame_both(), audiohook_read_frame_single(), autoservice_run(), multicast_rtp_write(), process_dtmf_rfc2833(), and recordthread().
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. |
Makes a frame independent of any static storage.
Definition at line 391 of file frame.c.
References ast_copy_flags, ast_frame_header_new(), ast_frdup(), ast_free, AST_FRFLAG_HAS_TIMING_INFO, AST_FRIENDLY_OFFSET, ast_malloc, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_strdup, ast_test_flag, ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, ast_frame::frametype, ast_frame::len, ast_frame::mallocd, ast_frame::offset, ast_frame::ptr, ast_frame::samples, ast_frame::seqno, ast_frame::src, ast_frame::subclass, ast_frame::ts, and ast_frame::uint32.
Referenced by __ast_answer(), ast_dsp_process(), ast_rtp_read(), ast_safe_sleep_conditional(), ast_slinfactory_feed(), ast_trans_frameout(), ast_write(), autoservice_run(), dahdi_decoder_frameout(), dahdi_encoder_frameout(), feature_request_and_dial(), jpeg_read_image(), read_frame(), spandsp_fax_read(), and t38_tx_packet_handler().
struct ast_format_list* ast_get_format_list | ( | size_t * | size | ) |
Definition at line 572 of file frame.c.
References ARRAY_LEN, and AST_FORMAT_LIST.
Referenced by ast_data_add_codecs(), complete_trans_path_choice(), and handle_cli_core_show_translation().
struct ast_format_list* ast_get_format_list_index | ( | int | index | ) |
Definition at line 567 of file frame.c.
format_t ast_getformatbyname | ( | const char * | name | ) |
Gets a format from a name.
name | string of format |
Definition at line 641 of file frame.c.
References ARRAY_LEN, ast_expand_codec_alias(), ast_format_list::bits, and format.
Referenced by ast_parse_allow_disallow(), iax_template_parse(), load_moh_classes(), local_ast_moh_start(), reload_config(), and try_suggested_sip_codec().
char* ast_getformatname | ( | format_t | format | ) |
Get the name of a format.
format | id of format |
Definition at line 578 of file frame.c.
References ARRAY_LEN, ast_format_list::bits, and ast_format_list::name.
Referenced by __ast_play_and_record(), __ast_read(), __ast_register_translator(), __ast_smoother_feed(), _sip_show_peer(), _skinny_show_line(), add_codec_to_answer(), add_codec_to_sdp(), add_sdp(), add_tcodec_to_sdp(), add_vcodec_to_sdp(), agent_call(), ast_channel_make_compatible_helper(), ast_codec_get_len(), ast_codec_pref_getsize(), ast_codec_pref_string(), ast_do_masquerade(), ast_dsp_process(), ast_frame_dump(), ast_openvstream(), ast_rtp_instance_bridge(), ast_rtp_write(), ast_slinfactory_feed(), ast_stopstream(), ast_streamfile(), ast_translate_path_to_str(), ast_translator_build_path(), ast_unregister_translator(), ast_write(), ast_writestream(), background_detect_exec(), bridge_channel_join(), bridge_make_compatible(), conf_run(), dahdi_read(), dahdi_write(), do_waiting(), dump_versioned_codec(), eagi_exec(), func_channel_read(), function_iaxpeer(), function_sippeer(), g719write(), g726_write(), g729_write(), gsm_write(), gtalk_rtp_read(), gtalk_show_channels(), gtalk_write(), h263_write(), h264_write(), handle_cli_core_show_file_formats(), handle_cli_core_show_translation(), handle_cli_iax2_show_channels(), handle_cli_iax2_show_peer(), handle_cli_moh_show_classes(), handle_core_show_image_formats(), handle_open_receive_channel_ack_message(), iax2_request(), iax_show_provisioning(), ilbc_write(), isAnsweringMachine(), jack_hook_callback(), jingle_rtp_read(), jingle_show_channels(), jingle_write(), login_exec(), mgcp_rtp_read(), mgcp_write(), misdn_write(), moh_files_release(), moh_release(), nbs_request(), nbs_xwrite(), ogg_vorbis_write(), oh323_rtp_read(), oh323_write(), pcm_write(), phone_setup(), phone_write(), print_codec_to_cli(), print_frame(), process_sdp_a_audio(), rebuild_matrix(), register_translator(), remote_bridge_loop(), set_format(), set_local_capabilities(), set_peer_capabilities(), setup_rtp_connection(), show_codecs(), sip_request_call(), sip_rtp_read(), sip_write(), siren14write(), siren7write(), skinny_new(), skinny_rtp_read(), skinny_set_rtp_peer(), skinny_write(), slinear_write(), socket_process(), start_rtp(), unistim_new(), unistim_request(), unistim_rtp_read(), unistim_write(), vox_write(), and wav_write().
char* ast_getformatname_multiple | ( | char * | buf, |
size_t | size, | ||
format_t | 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 591 of file frame.c.
References ARRAY_LEN, ast_copy_string(), ast_format_list::bits, len(), and name.
Referenced by __ast_read(), _sip_show_peer(), _skinny_show_device(), _skinny_show_line(), add_sdp(), alsa_request(), ast_best_codec(), ast_codec_get_samples(), ast_request(), ast_streamfile(), ast_write(), bridge_make_compatible(), console_request(), function_iaxpeer(), function_sippeer(), gtalk_is_answered(), gtalk_newcall(), gtalk_write(), handle_capabilities_res_message(), handle_cli_core_show_channeltype(), handle_cli_iax2_show_peer(), handle_showchan(), iax2_bridge(), jingle_write(), mgcp_request(), mgcp_write(), oh323_request(), oh323_write(), oss_request(), phone_request(), process_sdp(), serialize_showchan(), set_format(), setup_rtp_connection(), show_channels_cb(), sip_new(), sip_request_call(), sip_show_channel(), sip_show_settings(), sip_write(), skinny_new(), skinny_request(), skinny_write(), socket_process(), start_rtp(), unistim_new(), unistim_request(), and unistim_write().
int ast_parse_allow_disallow | ( | struct ast_codec_pref * | pref, |
format_t * | 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_debug, AST_FORMAT_AUDIO_MASK, ast_getformatbyname(), ast_log(), ast_strdupa, format, LOG_WARNING, parse(), and strsep().
Referenced by action_originate(), apply_outgoing(), build_peer(), build_user(), config_parse_variables(), gtalk_create_member(), gtalk_load_config(), jingle_create_member(), jingle_load_config(), reload_config(), set_config(), skinny_unregister(), and update_common_options().
void ast_smoother_free | ( | struct ast_smoother * | s | ) |
Definition at line 294 of file frame.c.
References ast_free.
Referenced by ast_rtp_destroy(), ast_rtp_write(), destroy_session(), and generic_fax_exec().
int ast_smoother_get_flags | ( | struct ast_smoother * | smoother | ) |
Definition at line 193 of file frame.c.
References ast_smoother::flags.
struct ast_smoother* ast_smoother_new | ( | int | bytes | ) |
Definition at line 183 of file frame.c.
References ast_malloc, and ast_smoother_reset().
Referenced by ast_rtp_write(), and generic_fax_exec().
struct ast_frame* ast_smoother_read | ( | struct ast_smoother * | s | ) |
Definition at line 244 of file frame.c.
References ast_format_rate(), AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_samp2tv(), AST_SMOOTHER_FLAG_G729, ast_tvadd(), ast_tvzero(), ast_frame_subclass::codec, 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::ptr, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, and ast_frame::subclass.
Referenced by ast_rtp_write(), and generic_fax_exec().
void ast_smoother_reconfigure | ( | struct ast_smoother * | s, |
int | bytes | ||
) |
Reconfigure an existing smoother to output a different number of bytes per frame.
s | the smoother to reconfigure |
bytes | the desired number of bytes per output frame |
Definition at line 161 of file frame.c.
References ast_smoother::opt, ast_smoother::opt_needs_swap, ast_smoother::size, and smoother_frame_feed().
void ast_smoother_reset | ( | struct ast_smoother * | s, |
int | bytes | ||
) |
Definition at line 155 of file frame.c.
References ast_smoother::size.
Referenced by ast_smoother_new().
void ast_smoother_set_flags | ( | struct ast_smoother * | smoother, |
int | flags | ||
) |
Definition at line 198 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
int ast_smoother_test_flag | ( | struct ast_smoother * | s, |
int | flag | ||
) |
Definition at line 203 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
void ast_swapcopy_samples | ( | void * | dst, |
const void * | src, | ||
int | samples | ||
) |
Definition at line 556 of file frame.c.
Referenced by __ast_smoother_feed(), iax_frame_wrap(), phone_write_buf(), and smoother_frame_feed().
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 131 of file frame.c.
Referenced by __analog_handle_event(), __ast_channel_masquerade(), __ast_read(), __oh323_rtp_create(), __oh323_update_info(), agent_read(), agent_request(), ast_channel_setwhentohangup_tv(), ast_do_masquerade(), ast_rtcp_read(), ast_rtp_read(), ast_softhangup_nolock(), ast_udptl_read(), bridge_read(), conf_run(), console_read(), create_dtmf_frame(), dahdi_handle_event(), dahdi_read(), gtalk_rtp_read(), handle_request_invite(), handle_response_invite(), iax2_read(), jingle_rtp_read(), local_read(), mgcp_rtp_read(), multicast_rtp_read(), oh323_read(), oh323_rtp_read(), process_sdp(), sig_pri_handle_subcmds(), sip_read(), sip_rtp_read(), skinny_rtp_read(), spandsp_fax_read(), unistim_rtp_read(), and wakeup_sub().