diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2017-05-13 16:04:00 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-05-15 21:46:32 +0200 |
| commit | ca10048e5caa77d8ed4c4902336f8ef88738a5e0 (patch) | |
| tree | b760e6bc3d44e187298e692bccfa6136812a40c5 /src/common/fm_modulation.c | |
| parent | d03443c4f158c537f071487d12ed9fca631539a7 (diff) | |
Rename filter -> iir_filter (file name and instance name)
This is useful when using fir_filter in the future.
Diffstat (limited to 'src/common/fm_modulation.c')
| -rw-r--r-- | src/common/fm_modulation.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/common/fm_modulation.c b/src/common/fm_modulation.c index dca88b0..aaf7e2c 100644 --- a/src/common/fm_modulation.c +++ b/src/common/fm_modulation.c @@ -23,7 +23,7 @@ #include <string.h> #include <math.h> #include "sample.h" -#include "filter.h" +#include "iir_filter.h" #include "fm_modulation.h" //#define FAST_SINE @@ -110,8 +110,8 @@ void fm_demod_init(fm_demod_t *demod, double samplerate, double offset, double b #endif /* use fourth order (2 iter) filter, since it is as fast as second order (1 iter) filter */ - filter_lowpass_init(&demod->lp[0], bandwidth / 2.0, samplerate, 2); - filter_lowpass_init(&demod->lp[1], bandwidth / 2.0, samplerate, 2); + iir_lowpass_init(&demod->lp[0], bandwidth / 2.0, samplerate, 2); + iir_lowpass_init(&demod->lp[1], bandwidth / 2.0, samplerate, 2); #ifdef FAST_SINE int i; @@ -169,8 +169,8 @@ void fm_demodulate(fm_demod_t *demod, sample_t *samples, int num, float *buff) Q[s] = i * _sin + q * _cos; } demod->phase = phase; - filter_process(&demod->lp[0], I, num); - filter_process(&demod->lp[1], Q, num); + iir_process(&demod->lp[0], I, num); + iir_process(&demod->lp[1], Q, num); last_phase = demod->last_phase; for (s = 0; s < num; s++) { phase = atan2(Q[s], I[s]); |