spandsp 0.0.6
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#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <float.h>
#include "floating_fudge.h"
#include <assert.h>
#include "spandsp/telephony.h"
#include "spandsp/power_meter.h"
Functions | |
power_meter_t * | power_meter_init (power_meter_t *s, int shift) |
Initialise a power meter context. | |
int | power_meter_release (power_meter_t *s) |
int | power_meter_free (power_meter_t *s) |
power_meter_t * | power_meter_damping (power_meter_t *s, int shift) |
Change the damping factor of a power meter context. | |
int32_t | power_meter_update (power_meter_t *s, int16_t amp) |
Update a power meter. | |
int32_t | power_meter_level_dbm0 (float level) |
Get the current power meter reading, in dBm0. | |
int32_t | power_meter_level_dbov (float level) |
Get the current power meter reading, in dBOv. | |
int32_t | power_meter_current (power_meter_t *s) |
Get the current power meter reading. | |
float | power_meter_current_dbm0 (power_meter_t *s) |
Get the current power meter reading, in dBm0. | |
float | power_meter_current_dbov (power_meter_t *s) |
Get the current power meter reading, in dBOv. | |
int32_t | power_surge_detector (power_surge_detector_state_t *s, int16_t amp) |
float | power_surge_detector_current_dbm0 (power_surge_detector_state_t *s) |
Get the current surge detector meter reading, in dBm0. | |
float | power_surge_detector_current_dbov (power_surge_detector_state_t *s) |
Get the current surge detector meter reading, in dBOv. | |
power_surge_detector_state_t * | power_surge_detector_init (power_surge_detector_state_t *s, float min, float surge) |
int | power_surge_detector_release (power_surge_detector_state_t *s) |
int | power_surge_detector_free (power_surge_detector_state_t *s) |
int32_t power_meter_current | ( | power_meter_t * | s | ) |
Get the current power meter reading.
Get the current power meter reading.
s | The power meter context. |
References power_meter_t::reading.
float power_meter_current_dbm0 | ( | power_meter_t * | s | ) |
Get the current power meter reading, in dBm0.
Get the current power meter reading, in dBm0.
s | The power meter context. |
References power_meter_t::reading.
Referenced by fsk_rx_signal_power(), power_surge_detector_current_dbm0(), v17_rx_signal_power(), v22bis_rx_signal_power(), v27ter_rx_signal_power(), and v29_rx_signal_power().
float power_meter_current_dbov | ( | power_meter_t * | s | ) |
Get the current power meter reading, in dBOv.
Get the current power meter reading, in dBOv.
s | The power meter context. |
References power_meter_t::reading.
Referenced by power_surge_detector_current_dbov().
power_meter_t * power_meter_damping | ( | power_meter_t * | s, |
int | shift ) |
Change the damping factor of a power meter context.
Change the damping factor of a power meter context.
s | The power meter context. |
shift | The new shift to be used by the IIR filter. |
References power_meter_t::shift.
power_meter_t * power_meter_init | ( | power_meter_t * | s, |
int | shift ) |
Initialise a power meter context.
Initialise a power meter context.
s | The power meter context. |
shift | The shift to be used by the IIR filter. |
References power_meter_t::reading, and power_meter_t::shift.
Referenced by sig_tone_rx_init(), t31_init(), v17_rx_restart(), v22bis_rx_restart(), v27ter_rx_restart(), and v29_rx_restart().
int32_t power_meter_level_dbm0 | ( | float | level | ) |
Get the current power meter reading, in dBm0.
Get the power meter reading which represents a specified power level in dBm0.
level | A power level, in dB0m. |
Referenced by fsk_rx_signal_cutoff(), sig_tone_rx_init(), t31_init(), v17_rx_signal_cutoff(), v22bis_rx_signal_cutoff(), v27ter_rx_signal_cutoff(), and v29_rx_signal_cutoff().
int32_t power_meter_level_dbov | ( | float | level | ) |
Get the current power meter reading, in dBOv.
Get the power meter reading which represents a specified power level in dBOv.
level | A power level, in dBOv. |
int32_t power_meter_update | ( | power_meter_t * | s, |
int16_t | amp ) |
Update a power meter.
Update a power meter.
s | The power meter context. |
amp | The amplitude of the new audio sample. |
References power_meter_t::reading, and power_meter_t::shift.
Referenced by sig_tone_rx().
float power_surge_detector_current_dbm0 | ( | power_surge_detector_state_t * | s | ) |
Get the current surge detector meter reading, in dBm0.
Get the current surge detector short term meter reading, in dBm0.
s | The power surge detector context. |
References power_meter_current_dbm0().
float power_surge_detector_current_dbov | ( | power_surge_detector_state_t * | s | ) |
Get the current surge detector meter reading, in dBOv.
Get the current surge detector short term meter reading, in dBOv.
s | The power surge detector context. |
References power_meter_current_dbov().