shithub: soundpipe

ref: 25a9fcc24ad00c6a406042818b9e6f2e7bba0dd1
dir: soundpipe/modules/scale.c

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/* This code is placed in the public domain. */

#include <stdlib.h>
#include "soundpipe.h"
#include "tangled/scale.h"

int sp_scale_create(sp_scale **p)
{
    *p = malloc(sizeof(sp_scale));
    return SP_OK;
}

int sp_scale_destroy(sp_scale **p)
{
    free(*p);
    return SP_OK;
}

int sp_scale_init(sp_data *sp, sp_scale *p)
{
    USED(sp);

    p->min = -1;
    p->max = 1;
    return SP_OK;
}

int sp_scale_compute(sp_data *sp, sp_scale *p, SPFLOAT *in, SPFLOAT *out)
{
    USED(sp);

    *out = sk_scale(*in, p->min, p->max);
    return SP_OK;
}