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// Part of dump1090, a Mode S message decoder for RTLSDR devices.
//
// convert.h: support for various IQ -> magnitude conversions
//
// Copyright (c) 2015 Oliver Jowett <oliver@mutability.co.uk>
//
// This file is free software: you may copy, redistribute and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation, either version 2 of the License, or (at your
// option) 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 DUMP1090_CONVERT_H
#define DUMP1090_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_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
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