19 lines
464 B
C
19 lines
464 B
C
#include "filter.h"
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typedef struct samplerate {
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int factor;
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struct {
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double sum;
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int sum_count;
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biquad_low_pass_t bq;
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} down;
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struct {
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double last_sample;
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biquad_low_pass_t bq;
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} up;
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} samplerate_t;
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int init_samplerate(samplerate_t *state, int samplerate);
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int samplerate_downsample(samplerate_t *state, int16_t *input, int input_num, int16_t *output);
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int samplerate_upsample(samplerate_t *state, int16_t *input, int input_num, int16_t *output);
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