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channelmix: improve corssover processing

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Apply volume after crossover, optimize when disabled or silent.
This commit is contained in:
Wim Taymans 2022-02-27 20:41:44 +01:00
parent 168511c157
commit d62d2764e8
5 changed files with 52 additions and 43 deletions
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5
spa/plugins/audioconvert/crossover.h
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@ -6,6 +6,8 @@
#ifndef CROSSOVER_H_
#define CROSSOVER_H_
#include <stdbool.h>
#include "biquad.h"
/* An LR4 filter is two biquads with the same parameters connected in series:
*
@ -19,10 +21,11 @@ struct lr4 {
float x1, x2;
float y1, y2;
float z1, z2;
bool active;
};
void lr4_set(struct lr4 *lr4, enum biquad_type type, float freq);
void lr4_process(struct lr4 *lr4, float *data, int samples);
void lr4_process(struct lr4 *lr4, float *dst, const float *src, const float vol, int samples);
#endif /* CROSSOVER_H_ */