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authorAndreas Eversberg <jolly@eversberg.eu>2017-01-05 15:53:55 +0100
committerAndreas Eversberg <jolly@eversberg.eu>2017-01-07 06:28:23 +0100
commit713b1ab118f4ded11a8435bbd4d81c117e7fe180 (patch)
tree73a7cbd5a15a4a2d61cf81f0ecfc85ad1d3ffd7b /src/common/samplerate.c
parentd447be5e265e9afe5b5a67f924b16f71f4faeea5 (diff)
Rename functions and structure of biquad lowpass filter
Diffstat (limited to 'src/common/samplerate.c')
-rw-r--r--src/common/samplerate.c8
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++) {