35 lines
810 B
C
35 lines
810 B
C
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#include "../libfilter/iir_filter.h"
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struct mf_mod_tone {
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double rot;
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double phase;
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double amplitude;
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};
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typedef struct mf_mod {
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int tones;
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struct mf_mod_tone tone[0];
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} mf_mod_t;
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struct mf_demod_tone {
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double rot;
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double phase;
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iir_filter_t lp[2];
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};
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typedef struct mf_demod {
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int tones;
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struct mf_demod_tone tone[0];
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} mf_demod_t;
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int mf_init(int _fast_math);
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void mf_exit(void);
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mf_mod_t *mf_mod_init(double samplerate, int tones, double *freq, double *amplitude);
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void mf_mod_exit(mf_mod_t *mod);
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void mf_mod(mf_mod_t *mod, uint32_t *mask, sample_t *samples, int length);
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mf_demod_t *mf_demod_init(double samplerate, int tones, double *freq, double *width);
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void mf_demod_exit(mf_demod_t *demod);
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void mf_demod(mf_demod_t *demod, sample_t *samples, int length, sample_t **levels_squared);
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