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spandsp 3.0.0
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#include <inttypes.h>#include <stdlib.h>#include <stdio.h>#include <string.h>#include <memory.h>#include "spandsp/stdbool.h"#include "floating_fudge.h"#include "spandsp/telephony.h"#include "spandsp/alloc.h"#include "spandsp/logging.h"#include "spandsp/queue.h"#include "spandsp/async.h"#include "spandsp/complex.h"#include "spandsp/dds.h"#include "spandsp/tone_detect.h"#include "spandsp/tone_generate.h"#include "spandsp/super_tone_rx.h"#include "spandsp/power_meter.h"#include "spandsp/fsk.h"#include "spandsp/dtmf.h"#include "spandsp/modem_connect_tones.h"#include "spandsp/v8.h"#include "spandsp/v18.h"#include "spandsp/private/logging.h"#include "spandsp/private/queue.h"#include "spandsp/private/tone_generate.h"#include "spandsp/private/async.h"#include "spandsp/private/power_meter.h"#include "spandsp/private/fsk.h"#include "spandsp/private/dtmf.h"#include "spandsp/private/modem_connect_tones.h"#include "spandsp/private/v18.h"Classes | |
| struct | dtmf_to_ascii_s |
Macros | |
| #define | BAUDOT_FIGURE_SHIFT 0x1B |
| #define | BAUDOT_LETTER_SHIFT 0x1F |
Functions | |
| int | v18_tx (v18_state_t *s, int16_t *amp, int max_len) |
| int | v18_rx (v18_state_t *s, const int16_t amp[], int len) |
| Process a block of received V.18 audio samples. | |
| int | v18_rx_fillin (v18_state_t *s, int len) |
| Fake processing of a missing block of received V.18 audio samples. | |
| int | v18_put (v18_state_t *s, const char msg[], int len) |
| Put a string to a V.18 context's input buffer. | |
| const char * | v18_mode_to_str (int mode) |
| Return a short name for an V.18 mode. | |
| logging_state_t * | v18_get_logging_state (v18_state_t *s) |
| v18_state_t * | v18_init (v18_state_t *s, bool calling_party, int mode, int nation, put_msg_func_t put_msg, void *user_data) |
| Initialise a V.18 context. | |
| int | v18_release (v18_state_t *s) |
| Release a V.18 context. | |
| int | v18_free (v18_state_t *s) |
| Release a V.18 context. | |
| #define BAUDOT_FIGURE_SHIFT 0x1B |
The baudot code to shift from alpha to digits and symbols
| #define BAUDOT_LETTER_SHIFT 0x1F |
The baudot code to shift from digits and symbols to alpha
| int v18_free | ( | v18_state_t * | s | ) |
Release a V.18 context.
Free a V.18 context.
| s | The V.18 context. |
References queue_release().
| v18_state_t * v18_init | ( | v18_state_t * | s, |
| bool | calling_party, | ||
| int | mode, | ||
| int | nation, | ||
| put_msg_func_t | put_msg, | ||
| void * | user_data ) |
Initialise a V.18 context.
Initialise a V.18 context.
| s | The V.18 context. |
| calling_party | True if caller mode, else answerer mode. |
| mode | Mode of operation. |
| nation | National variant for automoding. |
| put_msg | A callback routine called to deliver the received text to the application. |
| user_data | An opaque pointer for the callback routine. |
References ASYNC_PARITY_EVEN, ASYNC_PARITY_NONE, async_tx_get_bit(), async_tx_init(), v18_state_s::calling_party, dtmf_rx_init(), dtmf_tx_init(), fsk_rx_init(), fsk_tx_init(), queue_init(), QUEUE_READ_ATOMIC, and QUEUE_WRITE_ATOMIC.
| const char * v18_mode_to_str | ( | int | mode | ) |
Return a short name for an V.18 mode.
| mode | The code for the V.18 mode. |
| int v18_put | ( | v18_state_t * | s, |
| const char | msg[], | ||
| int | len ) |
Put a string to a V.18 context's input buffer.
| s | The V.18 context. |
| msg | The string to be added. |
| len | The length of the string. If negative, the string is assumed to be a NULL terminated string. |
References queue_write().
| int v18_release | ( | v18_state_t * | s | ) |
Release a V.18 context.
Release a V.18 context.
| s | The V.18 context. |
References queue_release().
| int v18_rx | ( | v18_state_t * | s, |
| const int16_t | amp[], | ||
| int | len ) |
| int v18_rx_fillin | ( | v18_state_t * | s, |
| int | len ) |
Fake processing of a missing block of received V.18 audio samples.
Fake processing of a missing block of received V.18 audio samples. (e.g due to packet loss).
| s | The V.18 context. |
| len | The number of samples to fake. |
References dtmf_rx_fillin(), and fsk_rx_fillin().