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/*
* Copyright (C) 2016, Mike Walters <mike@flomp.net>
*
* This file is part of inspectrum.
*
* This program 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
* (at your option) any later version.
*
* This program 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/>.
*/
#include "frequencydemod.h"
#include <liquid/liquid.h>
#include "util.h"
FrequencyDemod::FrequencyDemod(std::shared_ptr<SampleSource<std::complex<float>>> src) : SampleBuffer(src)
{
}
void FrequencyDemod::work(void *input, void *output, int count, off_t sampleid)
{
auto in = static_cast<std::complex<float>*>(input);
auto out = static_cast<float*>(output);
freqdem fdem = freqdem_create(0.05f);
for (int i = 0; i < count; i++) {
freqdem_demodulate(fdem, in[i], &out[i]);
}
freqdem_destroy(fdem);
}