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Typedefs | |
typedef sig_tone_tx_state_s | sig_tone_tx_state_t |
typedef sig_tone_rx_state_s | sig_tone_rx_state_t |
Enumerations | |
enum | { SIG_TONE_2280HZ = 1, SIG_TONE_2600HZ, SIG_TONE_2400HZ_2600HZ } |
enum | { SIG_TONE_1_PRESENT = 0x001, SIG_TONE_1_CHANGE = 0x002, SIG_TONE_2_PRESENT = 0x004, SIG_TONE_2_CHANGE = 0x008, SIG_TONE_TX_PASSTHROUGH = 0x010, SIG_TONE_RX_PASSTHROUGH = 0x040, SIG_TONE_RX_FILTER_TONE = 0x080, SIG_TONE_TX_UPDATE_REQUEST = 0x100, SIG_TONE_RX_UPDATE_REQUEST = 0x200 } |
Functions | |
int | sig_tone_rx (sig_tone_rx_state_t *s, int16_t amp[], int len) |
Process a block of received audio samples. | |
void | sig_tone_rx_set_mode (sig_tone_rx_state_t *s, int mode, int duration) |
Set the receive mode. | |
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. | |
int | sig_tone_rx_release (sig_tone_rx_state_t *s) |
Release a signalling tone receiver context. | |
int | sig_tone_rx_free (sig_tone_rx_state_t *s) |
Free a signalling tone receiver context. | |
int | sig_tone_tx (sig_tone_tx_state_t *s, int16_t amp[], int len) |
Generate a block of signalling tone audio samples. | |
void | sig_tone_tx_set_mode (sig_tone_tx_state_t *s, int mode, int duration) |
Set the tone mode. | |
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. | |
int | sig_tone_tx_release (sig_tone_tx_state_t *s) |
Release a signalling tone transmitter context. | |
int | sig_tone_tx_free (sig_tone_tx_state_t *s) |
Free a signalling tone transmitter context. |
anonymous enum |
anonymous enum |
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. |
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. |