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spandsp 0.0.6
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#include <stdlib.h>#include <inttypes.h>#include <string.h>#include <stdio.h>#include "floating_fudge.h"#include "spandsp/telephony.h"#include "spandsp/bit_operations.h"#include "spandsp/dc_restore.h"#include "spandsp/modem_echo.h"#include "spandsp/private/modem_echo.h"Functions | |
| void | modem_echo_can_free (modem_echo_can_state_t *ec) |
| modem_echo_can_state_t * | modem_echo_can_init (int len) |
| void | modem_echo_can_flush (modem_echo_can_state_t *ec) |
| void | modem_echo_can_adaption_mode (modem_echo_can_state_t *ec, int adapt) |
| int16_t | modem_echo_can_update (modem_echo_can_state_t *ec, int16_t tx, int16_t rx) |
| void modem_echo_can_adaption_mode | ( | modem_echo_can_state_t * | ec, |
| int | adapt | ||
| ) |
Set the adaption mode of a modem echo canceller context.
| ec | The echo canceller context. |
| adapt | The mode. |
| void modem_echo_can_flush | ( | modem_echo_can_state_t * | ec | ) |
Flush (reinitialise) a modem echo canceller context.
| ec | The echo canceller context. |
References modem_echo_can_state_s::fir_taps16, and modem_echo_can_state_s::fir_taps32.
| void modem_echo_can_free | ( | modem_echo_can_state_t * | ec | ) |
Free a modem echo canceller context.
| ec | The echo canceller context. |
References modem_echo_can_state_s::fir_taps16, and modem_echo_can_state_s::fir_taps32.
| modem_echo_can_state_t * modem_echo_can_init | ( | int | len | ) |
Create a modem echo canceller context.
| len | The length of the canceller, in samples. eturn The new canceller context, or NULL if the canceller could not be created. |
References modem_echo_can_state_s::fir_taps16, and modem_echo_can_state_s::fir_taps32.
| int16_t modem_echo_can_update | ( | modem_echo_can_state_t * | ec, |
| int16_t | tx, | ||
| int16_t | rx | ||
| ) |
Process a sample through a modem echo canceller.
| ec | The echo canceller context. |
| tx | The transmitted audio sample. |
| rx | The received audio sample. eturn The clean (echo cancelled) received sample. |
References modem_echo_can_state_s::fir_taps16, and modem_echo_can_state_s::fir_taps32.