ref: dd88a3bf36323b1917aad54943766529bcfbe9d0
dir: /modules/scale.c/
/* This code is placed in the public domain. */ #include <stdlib.h> #include "soundpipe.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) { p->min = -1; p->max = 1; return SP_OK; } int sp_scale_compute(sp_data *sp, sp_scale *p, SPFLOAT *in, SPFLOAT *out) { *out = *in * (p->max - p->min) + p->min; return SP_OK; }