tone_generate.c File Reference

#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <fcntl.h>
#include "floating_fudge.h"
#include "spandsp/telephony.h"
#include "spandsp/fast_convert.h"
#include "spandsp/dc_restore.h"
#include "spandsp/complex.h"
#include "spandsp/dds.h"
#include "spandsp/tone_generate.h"
#include "spandsp/private/tone_generate.h"

Defines

#define M_PI   3.14159265358979323846264338327

Functions

tone_gen_descriptor_ttone_gen_descriptor_init (tone_gen_descriptor_t *s, int f1, int l1, int f2, int l2, int d1, int d2, int d3, int d4, int repeat)
 Create a tone generator descriptor.
void tone_gen_descriptor_free (tone_gen_descriptor_t *s)
int tone_gen (tone_gen_state_t *s, int16_t amp[], int max_samples)
tone_gen_state_ttone_gen_init (tone_gen_state_t *s, tone_gen_descriptor_t *t)
int tone_gen_release (tone_gen_state_t *s)
int tone_gen_free (tone_gen_state_t *s)

Detailed Description


Function Documentation

tone_gen_descriptor_t* tone_gen_descriptor_init ( tone_gen_descriptor_t s,
int  f1,
int  l1,
int  f2,
int  l2,
int  d1,
int  d2,
int  d3,
int  d4,
int  repeat 
)

Create a tone generator descriptor.

Create a tone generator descriptor

Parameters:
s The descriptor
f1 The first frequency, in Hz
l1 The level of the first frequency, in dBm0
f2 0 for no second frequency, a positive number for the second frequency, in Hz, or a negative number for an AM modulation frequency, in Hz
l2 The level of the second frequency, in dBm0, or the percentage modulation depth for an AM modulated tone.
d1 x
d2 x
d3 x
d4 x
repeat x


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