// Part of readsb, a Mode-S/ADSB/TIS message decoder.

//

// convert.h: support for various IQ -> magnitude conversions

//

// Copyright (c) 2020 Michael Wolf <[email protected]>

//

// This code is based on a detached fork of dump1090-fa.

//

// Copyright (c) 2015 Oliver Jowett <[email protected]>

//

// This file is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// any later version.

//

// This file is distributed in the hope that it will be useful, but

// WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

// General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program. If not, see <http://www.gnu.org/licenses/>.

#ifndef CONVERT_H

#define CONVERT_H

struct converter_state;

typedef enum {

INPUT_UC8 = 0, INPUT_SC16, INPUT_SC16Q11

} input_format_t;

typedef void (*iq_convert_fn)(void *iq_data,

uint16_t *mag_data,

unsigned nsamples,

struct converter_state *state,

double *out_mean_level,

double *out_mean_power);

iq_convert_fn init_converter(input_format_t format,

double sample_rate,

int filter_dc,

struct converter_state **out_state);

void cleanup_converter(struct converter_state *state);

#endif