#pragma once

#include "dsp/agc.h"

#include "dsp/filter.h"

#include "dsp/pll.h"

#include "dsp/timing.h"

/* Satellite specific settings */

#define RRC_ALPHA 0.6

#define SYM_RATE 72000.0

/* Decoder specific settings */

#define RRC_ORDER 32

#define INTERP_FACTOR 5

#define SYM_BW 0.00005

#define PLL_BW 1

/**

* Initialize demodulator

*

* @param pll_bw carrier estimator PLL bandwidth

* @param sym_bw symbol timing estimator bandwidth

* @param samplerate input sample rate

* @param symrate expected symbol rate

* @param interp_factor filter interpolation factor

* @param rrc_order root-raised cosine order

* @param oqpsk 1 if oqpsk, 0 if qpsk

* @param freq_max max carrier frequency deviation, see pll.h for more info

*/

void demod_init(float pll_bw, float sym_bw, int samplerate, int symrate, int interp_factor, int rrc_order, int oqpsk, float freq_max);

/**

* Deinitialize demodulator

*/

void demod_deinit();

/**

* Feed a QPSK sample into the demodulator

*

* @param sample pointer to sample to use

* @return 1 if sample was updated to a demodulateed symbol, 0 otherwise

*/

int demod_qpsk(float complex *sample);

/**

* Feed a QPSK sample into the demodulator

*

* @param sample pointer to sample to use

* @return 1 if sample was updated to a demodulateed symbol, 0 otherwise

*/

int demod_oqpsk(float complex *sample);