diff options
Diffstat (limited to 'src/common/filter.h')
| -rw-r--r-- | src/common/filter.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/common/filter.h b/src/common/filter.h index 09a379b..42f051b 100644 --- a/src/common/filter.h +++ b/src/common/filter.h @@ -1,12 +1,14 @@ #ifndef _FILTER_H #define _FILTER_H -typedef struct filter_lowpass { +typedef struct filter { + int iter; double a0, a1, a2, b1, b2; - double z1[10], z2[10]; -} filter_lowpass_t; + double z1[64], z2[64]; +} filter_t; -void filter_lowpass_init(filter_lowpass_t *bq, double frequency, int samplerate); -void filter_lowpass_process(filter_lowpass_t *bq, double *samples, int length, int iterations); +void filter_lowpass_init(filter_t *bq, double frequency, int samplerate, int iterations); +void filter_highpass_init(filter_t *bq, double frequency, int samplerate, int iterations); +void filter_process(filter_t *bq, double *samples, int length); #endif /* _FILTER_H */ |