spandsp
0.0.6
|
#include <stdlib.h>
#include <inttypes.h>
#include "floating_fudge.h"
#include <memory.h>
#include <string.h>
#include <limits.h>
#include "spandsp/telephony.h"
#include "spandsp/fast_convert.h"
#include "spandsp/dc_restore.h"
#include "spandsp/saturated.h"
#include "spandsp/vector_int.h"
#include "spandsp/complex.h"
#include "spandsp/power_meter.h"
#include "spandsp/dds.h"
#include "spandsp/super_tone_rx.h"
#include "spandsp/sig_tone.h"
#include "spandsp/private/sig_tone.h"
Macros | |
#define | PI 3.14159265358979323 |
Enumerations | |
enum | { NOTCH_COEFF_SET_2280HZ = 0, NOTCH_COEFF_SET_2400HZ, NOTCH_COEFF_SET_2600HZ } |
Functions | |
int | sig_tone_tx (sig_tone_tx_state_t *s, int16_t amp[], int len) |
Generate a block of signalling tone audio samples. More... | |
void | sig_tone_tx_set_mode (sig_tone_tx_state_t *s, int mode, int duration) |
Set the tone mode. More... | |
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. More... | |
int | sig_tone_tx_release (sig_tone_tx_state_t *s) |
Release a signalling tone transmitter context. More... | |
int | sig_tone_tx_free (sig_tone_tx_state_t *s) |
Free a signalling tone transmitter context. More... | |
int | sig_tone_rx (sig_tone_rx_state_t *s, int16_t amp[], int len) |
Process a block of received audio samples. More... | |
void | sig_tone_rx_set_mode (sig_tone_rx_state_t *s, int mode, int duration) |
Set the receive mode. More... | |
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. More... | |
int | sig_tone_rx_release (sig_tone_rx_state_t *s) |
Release a signalling tone receiver context. More... | |
int | sig_tone_rx_free (sig_tone_rx_state_t *s) |
Free a signalling tone receiver context. More... | |
Variables | |
int | nnn = 0 |
#define PI 3.14159265358979323 |
PI
int sig_tone_rx | ( | sig_tone_rx_state_t * | s, |
int16_t | amp[], | ||
int | len | ||
) |
Process a block of received audio samples.
Process a block of received audio samples.
s | The signalling tone context. |
amp | The audio sample buffer. |
len | The number of samples in the buffer. |
int sig_tone_rx_free | ( | sig_tone_rx_state_t * | s | ) |
Free a signalling tone receiver context.
Free a signalling tone receiver context.
s | The signalling tone context. |
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.
Initialise a signalling tone receiver context.
s | The signalling tone context. |
tone_type | The type of signalling tone. |
sig_update | Callback function to handle signalling updates. |
user_data | An opaque pointer. |
int sig_tone_rx_release | ( | sig_tone_rx_state_t * | s | ) |
Release a signalling tone receiver context.
Release a signalling tone receiver context.
s | The signalling tone context. |
void sig_tone_rx_set_mode | ( | sig_tone_rx_state_t * | s, |
int | mode, | ||
int | duration | ||
) |
Set the receive mode.
Set the receive mode.
s | The signalling tone context. |
mode | The new mode for the receiver. |
duration | The duration for this mode, before an update is requested. A duration of zero means forever. |
References sig_tone_rx_state_s::current_rx_tone.
int sig_tone_tx | ( | sig_tone_tx_state_t * | s, |
int16_t | amp[], | ||
int | len | ||
) |
Generate a block of signalling tone audio samples.
Generate a block of signalling tone audio samples.
s | The signalling tone context. |
amp | The audio sample buffer. |
len | The number of samples to be generated. |
int sig_tone_tx_free | ( | sig_tone_tx_state_t * | s | ) |
Free a signalling tone transmitter context.
Free a signalling tone transmitter context.
s | The signalling tone context. |
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.
Initialise a signalling tone transmitter context.
s | The signalling tone context. |
tone_type | The type of signalling tone. |
sig_update | Callback function to handle signalling updates. |
user_data | An opaque pointer. |
int sig_tone_tx_release | ( | sig_tone_tx_state_t * | s | ) |
Release a signalling tone transmitter context.
Release a signalling tone transmitter context.
s | The signalling tone context. |
void sig_tone_tx_set_mode | ( | sig_tone_tx_state_t * | s, |
int | mode, | ||
int | duration | ||
) |
Set the tone mode.
Set the tone mode.
s | The signalling tone context. |
mode | The new mode for the transmitted tones. |
duration | The duration for this mode, before an update is requested. A duration of zero means forever. |
References sig_tone_tx_state_s::current_tx_timeout, sig_tone_tx_state_s::current_tx_tone, sig_tone_tx_state_s::desc, sig_tone_descriptor_t::high_low_timeout, sig_tone_tx_state_s::high_low_timer, sig_tone_tx_state_s::phase_acc, SIG_TONE_1_PRESENT, and SIG_TONE_2_PRESENT.