26 #if !defined(_SPANDSP_PRIVATE_SILENCE_GEN_H_)
27 #define _SPANDSP_PRIVATE_SILENCE_GEN_H_
36 int remaining_samples;
@ SIG_TONE_2_PRESENT
Definition: sig_tone.h:74
Definition: private/sig_tone.h:157
int16_t noise(noise_state_t *s)
Generate a sample of audio noise.
Definition: noise.c:52
@ SIG_TONE_2600HZ
Definition: sig_tone.h:61
int16_t dds_mod(uint32_t *phase_acc, int32_t phase_rate, int16_t scale, int32_t phase)
Generate an integer tone sample, with modulation.
Definition: dds_int.c:378
void(* modem_status_func_t)(void *user_data, int status)
Definition: async.h:114
float power_meter_current_dbm0(power_meter_t *s)
Get the current power meter reading, in dBm0.
Definition: power_meter.c:120
int32_t dds_phase_rate(float frequency)
Find the phase rate value to achieve a particular frequency.
Definition: dds_int.c:316
void sig_tone_rx_set_mode(sig_tone_rx_state_t *s, int mode, int duration)
Set the receive mode.
Definition: sig_tone.c:626
int16_t dds_scaling_dbm0(float level)
Find the scaling factor needed to achieve a specified level in dBm0.
Definition: dds_int.c:328
Definition: private/silence_gen.h:30
Definition: private/awgn.h:33
int32_t power_meter_update(power_meter_t *s, int16_t amp)
Update a power meter.
Definition: power_meter.c:84
@ SIG_TONE_RX_FILTER_TONE
Definition: sig_tone.h:83
void * status_user_data
A user specified opaque pointer passed to the status function.
Definition: private/silence_gen.h:34
SPAN_DECLARE_NONSTD(int) async_tx_get_bit(void *user_data)
Get the next bit of a transmitted serial bit stream.
Definition: power_meter.h:49
void sig_tone_tx_set_mode(sig_tone_tx_state_t *s, int mode, int duration)
Set the tone mode.
Definition: sig_tone.c:299
@ SIG_STATUS_SHUTDOWN_COMPLETE
A modem has completed its task, and shut down.
Definition: async.h:77
void silence_gen_always(silence_gen_state_t *s)
Set a silence generator context to output continuous silence.
Definition: silence_gen.c:73
@ SIG_TONE_TX_UPDATE_REQUEST
Definition: sig_tone.h:85
@ SIG_TONE_2400HZ_2600HZ
Definition: sig_tone.h:63
int sig_tone_tx(sig_tone_tx_state_t *s, int16_t amp[], int len)
Generate a block of signalling tone audio samples.
Definition: sig_tone.c:222
void silence_gen_set(silence_gen_state_t *s, int silent_samples)
Set a silence generator context to output a specified period of silence.
Definition: silence_gen.c:79
void silence_gen_status_handler(silence_gen_state_t *s, modem_status_func_t handler, void *user_data)
Change the status reporting function associated with a silence generator context.
Definition: silence_gen.c:111
sig_tone_tx_state_t * sig_tone_tx_init(sig_tone_tx_state_t *s, int tone_type, tone_report_func_t sig_update, void *user_data)
Initialise a signalling tone context.
Definition: sig_tone.c:319
Definition: sig_tone_tests.c:73
Definition: test_utils.c:54
void * user_data
A user specified opaque pointer passed to the callback function.
Definition: private/sig_tone.h:161
int sig_tone_rx(sig_tone_rx_state_t *s, int16_t amp[], int len)
Process a block of received audio samples.
Definition: sig_tone.c:368
int silence_gen_remainder(silence_gen_state_t *s)
Find how long a silence generator context has to run.
Definition: silence_gen.c:99
@ SIG_TONE_2280HZ
Definition: sig_tone.h:59
void silence_gen_alter(silence_gen_state_t *s, int silent_samples)
Alter the period of a silence generator context by a specified amount.
Definition: silence_gen.c:86
@ SIG_TONE_2_CHANGE
Definition: sig_tone.h:76
int silence_gen_generated(silence_gen_state_t *s)
Find the total silence generated to date.
Definition: silence_gen.c:105
@ SIG_TONE_TX_PASSTHROUGH
Definition: sig_tone.h:78
@ SIG_TONE_1_PRESENT
Definition: sig_tone.h:70
modem_status_func_t status_handler
The callback function used to report status changes.
Definition: private/silence_gen.h:32
sig_tone_rx_state_t * sig_tone_rx_init(sig_tone_rx_state_t *s, int tone_type, tone_report_func_t sig_update, void *user_data)
Initialise a signalling tone context.
Definition: sig_tone.c:632
@ SIG_TONE_RX_PASSTHROUGH
Definition: sig_tone.h:80
int span_dummy_mod(void *user_data, int16_t amp[], int len)
Dummy signal modifier callback.
Definition: silence_gen.c:154
Definition: private/swept_tone.h:30
silence_gen_state_t * silence_gen_init(silence_gen_state_t *s, int silent_samples)
Initialise a timed silence generator context.
Definition: silence_gen.c:118
@ SIG_TONE_1_CHANGE
Definition: sig_tone.h:72
power_meter_t * power_meter_init(power_meter_t *s, int shift)
Initialise a power meter context.
Definition: power_meter.c:50
Definition: private/sig_tone.h:126