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author | Andreas Eversberg <jolly@eversberg.eu> | 2017-01-05 15:53:55 +0100 |
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committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-01-07 06:28:23 +0100 |
commit | 713b1ab118f4ded11a8435bbd4d81c117e7fe180 (patch) | |
tree | 73a7cbd5a15a4a2d61cf81f0ecfc85ad1d3ffd7b /src/common/samplerate.c | |
parent | d447be5e265e9afe5b5a67f924b16f71f4faeea5 (diff) |
Rename functions and structure of biquad lowpass filter
Diffstat (limited to 'src/common/samplerate.c')
-rw-r--r-- | src/common/samplerate.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/common/samplerate.c b/src/common/samplerate.c index 630ba5d..8113055 100644 --- a/src/common/samplerate.c +++ b/src/common/samplerate.c @@ -37,8 +37,8 @@ int init_samplerate(samplerate_t *state, double samplerate) memset(state, 0, sizeof(*state)); state->factor = samplerate / 8000.0; - biquad_init(&state->up.bq, 4000.0, samplerate); - biquad_init(&state->down.bq, 4000.0, samplerate); + filter_lowpass_init(&state->up.lp, 4000.0, samplerate); + filter_lowpass_init(&state->down.lp, 4000.0, samplerate); return 0; } @@ -56,7 +56,7 @@ int samplerate_downsample(samplerate_t *state, int16_t *input, int input_num, in spl[i] = *input++ / 32768.0; /* filter down */ - biquad_process(&state->down.bq, spl, input_num, 1); + filter_lowpass_process(&state->down.lp, spl, input_num, 1); /* resample filtered result */ in_index = state->down.in_index; @@ -125,7 +125,7 @@ int samplerate_upsample(samplerate_t *state, int16_t *input, int input_num, int1 state->up.in_index = in_index; /* filter up */ - biquad_process(&state->up.bq, spl, output_num, 1); + filter_lowpass_process(&state->up.lp, spl, output_num, 1); /* convert double to samples */ for (i = 0; i < output_num; i++) { |