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authorAndreas Eversberg <jolly@eversberg.eu>2017-05-13 16:04:00 +0200
committerAndreas Eversberg <jolly@eversberg.eu>2017-05-15 21:46:32 +0200
commitca10048e5caa77d8ed4c4902336f8ef88738a5e0 (patch)
treeb760e6bc3d44e187298e692bccfa6136812a40c5 /src/test
parentd03443c4f158c537f071487d12ed9fca631539a7 (diff)
Rename filter -> iir_filter (file name and instance name)
This is useful when using fir_filter in the future.
Diffstat (limited to 'src/test')
-rw-r--r--src/test/test_emphasis.c2
-rw-r--r--src/test/test_filter.c22
-rw-r--r--src/test/test_performance.c16
3 files changed, 20 insertions, 20 deletions
diff --git a/src/test/test_emphasis.c b/src/test/test_emphasis.c
index 445a7d7..eda8d8e 100644
--- a/src/test/test_emphasis.c
+++ b/src/test/test_emphasis.c
@@ -3,7 +3,7 @@
#include <math.h>
#include <string.h>
#include "../common/sample.h"
-#include "../common/filter.h"
+#include "../common/iir_filter.h"
#include "../common/emphasis.h"
#include "../common/debug.h"
diff --git a/src/test/test_filter.c b/src/test/test_filter.c
index e74b403..2cae141 100644
--- a/src/test/test_filter.c
+++ b/src/test/test_filter.c
@@ -3,7 +3,7 @@
#include <math.h>
#include <string.h>
#include "../common/sample.h"
-#include "../common/filter.h"
+#include "../common/iir_filter.h"
#include "../common/debug.h"
#define level2db(level) (20 * log10(level))
@@ -36,8 +36,8 @@ static void gen_samples(sample_t *samples, double freq)
int main(void)
{
- filter_t filter_low;
- filter_t filter_high;
+ iir_filter_t filter_low;
+ iir_filter_t filter_high;
sample_t samples[SAMPLERATE];
double level;
int iter = 2;
@@ -47,11 +47,11 @@ int main(void)
printf("testing low-pass filter with %d iterations\n", iter);
- filter_lowpass_init(&filter_low, 1000.0, SAMPLERATE, iter);
+ iir_lowpass_init(&filter_low, 1000.0, SAMPLERATE, iter);
for (i = 0; i < 4001; i += 100) {
gen_samples(samples, (double)i);
- filter_process(&filter_low, samples, SAMPLERATE);
+ iir_process(&filter_low, samples, SAMPLERATE);
level = get_level(samples);
printf("%s%4d Hz: %.1f dB", debug_db(level), i, level2db(level));
if (i == 1000)
@@ -66,11 +66,11 @@ int main(void)
printf("testing high-pass filter with %d iterations\n", iter);
- filter_highpass_init(&filter_high, 2000.0, SAMPLERATE, iter);
+ iir_highpass_init(&filter_high, 2000.0, SAMPLERATE, iter);
for (i = 0; i < 4001; i += 100) {
gen_samples(samples, (double)i);
- filter_process(&filter_high, samples, SAMPLERATE);
+ iir_process(&filter_high, samples, SAMPLERATE);
level = get_level(samples);
printf("%s%4d Hz: %.1f dB", debug_db(level), i, level2db(level));
if (i == 2000)
@@ -85,13 +85,13 @@ int main(void)
printf("testing band-pass filter with %d iterations\n", iter);
- filter_lowpass_init(&filter_low, 2000.0, SAMPLERATE, iter);
- filter_highpass_init(&filter_high, 1000.0, SAMPLERATE, iter);
+ iir_lowpass_init(&filter_low, 2000.0, SAMPLERATE, iter);
+ iir_highpass_init(&filter_high, 1000.0, SAMPLERATE, iter);
for (i = 0; i < 4001; i += 100) {
gen_samples(samples, (double)i);
- filter_process(&filter_low, samples, SAMPLERATE);
- filter_process(&filter_high, samples, SAMPLERATE);
+ iir_process(&filter_low, samples, SAMPLERATE);
+ iir_process(&filter_high, samples, SAMPLERATE);
level = get_level(samples);
printf("%s%4d Hz: %.1f dB", debug_db(level), i, level2db(level));
if (i == 1000)
diff --git a/src/test/test_performance.c b/src/test/test_performance.c
index 622df67..3f9cb40 100644
--- a/src/test/test_performance.c
+++ b/src/test/test_performance.c
@@ -4,7 +4,7 @@
#include <string.h>
#include <sys/time.h>
#include "../common/sample.h"
-#include "../common/filter.h"
+#include "../common/iir_filter.h"
#include "../common/fm_modulation.h"
#include "../common/debug.h"
@@ -33,7 +33,7 @@ sample_t samples[SAMPLES];
float buff[SAMPLES * 2];
fm_mod_t mod;
fm_demod_t demod;
-filter_t lp;
+iir_filter_t lp;
int main(void)
{
@@ -47,19 +47,19 @@ int main(void)
fm_demodulate(&demod, samples, SAMPLES, buff);
T_STOP("FM demodulate", SAMPLES)
- filter_lowpass_init(&lp, 10000.0 / 2.0, 50000, 1);
+ iir_lowpass_init(&lp, 10000.0 / 2.0, 50000, 1);
T_START()
- filter_process(&lp, samples, SAMPLES);
+ iir_process(&lp, samples, SAMPLES);
T_STOP("low-pass filter (second order)", SAMPLES)
- filter_lowpass_init(&lp, 10000.0 / 2.0, 50000, 2);
+ iir_lowpass_init(&lp, 10000.0 / 2.0, 50000, 2);
T_START()
- filter_process(&lp, samples, SAMPLES);
+ iir_process(&lp, samples, SAMPLES);
T_STOP("low-pass filter (fourth order)", SAMPLES)
- filter_lowpass_init(&lp, 10000.0 / 2.0, 50000, 4);
+ iir_lowpass_init(&lp, 10000.0 / 2.0, 50000, 4);
T_START()
- filter_process(&lp, samples, SAMPLES);
+ iir_process(&lp, samples, SAMPLES);
T_STOP("low-pass filter (eigth order)", SAMPLES)
return 0;