spandsp 0.0.6
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Go to the source code of this file.
Typedefs | |
typedef struct fax_state_s | fax_state_t |
Functions | |
SPAN_DECLARE_NONSTD (int) fax_rx(fax_state_t *s | |
Apply T.30 receive processing to a block of audio samples. | |
void | fax_set_transmit_on_idle (fax_state_t *s, int transmit_on_idle) |
Select whether silent audio will be sent when FAX transmit is idle. | |
void | fax_set_tep_mode (fax_state_t *s, int use_tep) |
Select whether TEP will be sent for the image modems. | |
t30_state_t * | fax_get_t30_state (fax_state_t *s) |
Get a pointer to the T.30 engine associated with a FAX context. | |
logging_state_t * | fax_get_logging_state (fax_state_t *s) |
Get a pointer to the logging context associated with a FAX context. | |
int | fax_restart (fax_state_t *s, int calling_party) |
Restart a FAX context. | |
fax_state_t * | fax_init (fax_state_t *s, int calling_party) |
Initialise a FAX context. | |
int | fax_release (fax_state_t *s) |
Release a FAX context. | |
int | fax_free (fax_state_t *s) |
Free a FAX context. |
Variables | |
int16_t * | amp |
int16_t int | len |
int16_t int | max_len |
int fax_free | ( | fax_state_t * | s | ) |
Free a FAX context.
Free a FAX context.
s | The FAX context. |
References fax_state_s::t30, and t30_release().
logging_state_t * fax_get_logging_state | ( | fax_state_t * | s | ) |
Get a pointer to the logging context associated with a FAX context.
Get a pointer to the logging context associated with a FAX context.
s | The FAX context. |
References fax_state_s::logging.
t30_state_t * fax_get_t30_state | ( | fax_state_t * | s | ) |
Get a pointer to the T.30 engine associated with a FAX context.
Get a pointer to the T.30 engine associated with a FAX context.
s | The FAX context. |
References fax_state_s::t30.
fax_state_t * fax_init | ( | fax_state_t * | s, |
int | calling_party ) |
Initialise a FAX context.
Initialise a FAX context.
s | The FAX context. |
calling_party | TRUE if the context is for a calling party. FALSE if the context is for an answering party. |
References fax_restart(), fax_state_s::logging, MODEM_CONNECT_TONES_ANSAM_PR, fax_state_s::modems, t30_state_s::supported_modems, fax_state_s::t30, t30_init(), t30_set_supported_modems(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, T30_SUPPORT_V34HDX, and v8_init().
int fax_release | ( | fax_state_t * | s | ) |
Release a FAX context.
Release a FAX context.
s | The FAX context. |
References fax_state_s::t30, and t30_release().
int fax_restart | ( | fax_state_t * | s, |
int | calling_party ) |
Restart a FAX context.
Restart a FAX context.
s | The FAX context. |
calling_party | TRUE if the context is for a calling party. FALSE if the context is for an answering party. |
References fax_modems_state_s::audio_rx_log, fax_modems_state_s::audio_tx_log, MODEM_CONNECT_TONES_ANSAM_PR, fax_state_s::modems, t30_state_s::supported_modems, fax_state_s::t30, t30_restart(), T30_SUPPORT_V17, T30_SUPPORT_V27TER, T30_SUPPORT_V29, and T30_SUPPORT_V34HDX.
Referenced by fax_init().
void fax_set_tep_mode | ( | fax_state_t * | s, |
int | use_tep ) |
Select whether TEP will be sent for the image modems.
Select whether talker echo protection tone will be sent for the image modems.
s | The FAX context. |
use_tep | TRUE if TEP should be sent. |
References fax_state_s::modems, and fax_modems_state_s::use_tep.
void fax_set_transmit_on_idle | ( | fax_state_t * | s, |
int | transmit_on_idle ) |
Select whether silent audio will be sent when FAX transmit is idle.
Select whether silent audio will be sent when FAX transmit is idle.
s | The FAX context. |
transmit_on_idle | TRUE if silent audio should be output when the FAX transmitter is idle. FALSE to transmit zero length audio when the FAX transmitter is idle. The default behaviour is FALSE. |
References fax_state_s::modems, and fax_modems_state_s::transmit_on_idle.
SPAN_DECLARE_NONSTD | ( | int | ) |
Apply T.30 receive processing to a block of audio samples.
Get the next bit of data from a T.38 rate adapting non-ECM buffer context.
Get a bit of received non-ECM image data.
Get the next bit of a transmitted serial bit stream.
Apply T.30 transmit processing to generate a block of audio samples.
Apply fake T.30 receive processing.
Apply T.30 receive processing to a block of audio samples.
s | The FAX context. |
amp | The audio sample buffer. |
len | The number of samples in the buffer. |
Apply fake T.30 receive processing when a block of audio samples is missing (e.g due to packet loss).
s | The FAX context. |
len | The number of samples to fake. |
Apply T.30 transmit processing to generate a block of audio samples.
s | The FAX context. |
amp | The audio sample buffer. |
max_len | The number of samples to be generated. |