76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
#include <string.h>
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#define BIQUAD_DOUBLE
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#include "crap_util.h"
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#define ID 0x0DEFACED
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#define LABEL "crap_eq_const"
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#define NAME "crap Constant Equalizer"
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#define AUTHOR "Connor Olding"
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#define COPYRIGHT "MIT"
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#define PARAMETERS 0
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#define BANDS 4
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typedef struct {
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biquad filters[2][BANDS];
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} personal;
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static bq_t
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process_one(biquad *filters, bq_t samp)
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{
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for (int i = 0; i < BANDS; i++)
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samp = biquad_run(&filters[i], samp);
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return samp*1.2023;
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}
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static void
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process(personal *data,
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float *in_L, float *in_R,
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float *out_L, float *out_R,
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unsigned long count) {
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for (unsigned long pos = 0; pos < count; pos++) {
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out_L[pos] = process_one(data->filters[0], in_L[pos]);
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out_R[pos] = process_one(data->filters[1], in_R[pos]);
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}
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}
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static void
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process_double(personal *data,
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double *in_L, double *in_R,
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double *out_L, double *out_R,
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unsigned long count) {
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// TODO: test which hosts use this
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for (unsigned long pos = 0; pos < count; pos++) {
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out_L[pos] = process_one(data->filters[0], in_L[pos]);
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out_R[pos] = process_one(data->filters[1], in_R[pos]);
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}
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}
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static void
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construct(personal *data) {
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}
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static void
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destruct(personal *data) {
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}
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static void
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resume(personal *data) {
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biquad *filters = data->filters[0];
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for (int i = 0; i < BANDS; i++)
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biquad_init(&filters[i]);
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memcpy(data->filters[1], filters, BANDS*sizeof(biquad));
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}
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static void
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pause(personal *data) {
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}
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static void
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adjust(personal *data, unsigned long fs) {
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biquad *filters = data->filters[0];
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filters[0] = biquad_gen(FILT_PEAKING, 34.34, +4.6, 1.21, fs);
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filters[1] = biquad_gen(FILT_PEAKING, 85.74, -1.2, 1.31, fs);
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filters[2] = biquad_gen(FILT_HIGHSHELF, 862.2, -5.5, 1.00, fs);
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filters[3] = biquad_gen(FILT_PEAKING, 7496., +3.3, 1.10, fs);
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}
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