diff options
author | Andreas Eversberg <jolly@eversberg.eu> | 2017-08-05 10:41:23 +0200 |
---|---|---|
committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-08-09 17:27:13 +0200 |
commit | 534411d660ad2b9567059e371cf30e71d4e4e848 (patch) | |
tree | 3c1796e7b79b3760934b592407dab91364822c7a /src/common/fm_modulation.h | |
parent | ffd3b848e1c2ca5e8449731062acd84f9d7d664b (diff) |
New common FSK implementation, replaces all individual implementations
Diffstat (limited to 'src/common/fm_modulation.h')
-rw-r--r-- | src/common/fm_modulation.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/common/fm_modulation.h b/src/common/fm_modulation.h index 2cd571a..83e7db4 100644 --- a/src/common/fm_modulation.h +++ b/src/common/fm_modulation.h @@ -1,3 +1,4 @@ +#include "../common/iir_filter.h" typedef struct fm_mod { double samplerate; /* sample rate of in and out */ @@ -7,8 +8,9 @@ typedef struct fm_mod { double *sin_tab; /* sine/cosine table for modulation */ } fm_mod_t; -void fm_mod_init(fm_mod_t *mod, double samplerate, double offset, double amplitude); -void fm_modulate(fm_mod_t *mod, sample_t *samples, int num, float *buff); +int fm_mod_init(fm_mod_t *mod, double samplerate, double offset, double amplitude); +void fm_mod_exit(fm_mod_t *mod); +void fm_modulate_complex(fm_mod_t *mod, sample_t *frequency, int num, float *baseband); typedef struct fm_demod { double samplerate; /* sample rate of in and out */ @@ -19,6 +21,8 @@ typedef struct fm_demod { double *sin_tab; /* sine/cosine table rotation */ } fm_demod_t; -void fm_demod_init(fm_demod_t *demod, double samplerate, double offset, double bandwidth); -void fm_demodulate(fm_demod_t *demod, sample_t *samples, int num, float *buff); +int fm_demod_init(fm_demod_t *demod, double samplerate, double offset, double bandwidth); +void fm_demod_exit(fm_demod_t *demod); +void fm_demodulate_complex(fm_demod_t *demod, sample_t *frequency, int length, float *baseband, sample_t *I, sample_t *Q); +void fm_demodulate_real(fm_demod_t *demod, sample_t *frequency, int length, sample_t *baseband, sample_t *I, sample_t *Q); |