From f90f421b165c7880cd88db8795f00073dd768f60 Mon Sep 17 00:00:00 2001 From: Andreas Eversberg Date: Sat, 13 Mar 2021 17:10:08 +0100 Subject: Add libs --- src/libsamplerate/samplerate.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 src/libsamplerate/samplerate.h (limited to 'src/libsamplerate/samplerate.h') diff --git a/src/libsamplerate/samplerate.h b/src/libsamplerate/samplerate.h new file mode 100644 index 0000000..8f8ea87 --- /dev/null +++ b/src/libsamplerate/samplerate.h @@ -0,0 +1,19 @@ +#include "../libfilter/iir_filter.h" + +typedef struct samplerate { + double factor; + struct { + iir_filter_t lp; + sample_t last_sample; + double in_index; + } down; + struct { + iir_filter_t lp; + sample_t last_sample; + double in_index; + } up; +} samplerate_t; + +int init_samplerate(samplerate_t *state, double low_samplerate, double high_samplerate, double filter_cutoff); +int samplerate_downsample(samplerate_t *state, sample_t *samples, int input_num); +int samplerate_upsample(samplerate_t *state, sample_t *input, int input_num, sample_t *output); -- cgit v1.2.3