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/* Copyright (C) 2015-2017 Sergey V. Mikayev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SINC_RESAMPLER_H
#define SINC_RESAMPLER_H
#include "FIRResampler.h"
namespace SRCTools {
class ResamplerStage;
namespace SincResampler {
ResamplerStage *createSincResampler(const double inputFrequency, const double outputFrequency, const double passbandFrequency, const double stopbandFrequency, const double dbSNR, const unsigned int maxUpsampleFactor);
namespace Utils {
void computeResampleFactors(unsigned int &upsampleFactor, double &downsampleFactor, const double inputFrequency, const double outputFrequency, const unsigned int maxUpsampleFactor);
unsigned int greatestCommonDivisor(unsigned int a, unsigned int b);
}
namespace KaizerWindow {
double estimateBeta(double dbRipple);
unsigned int estimateOrder(double dbRipple, double fp, double fs);
double bessel(const double x);
void windowedSinc(FIRCoefficient kernel[], const unsigned int order, const double fc, const double beta, const double amp);
}
} // namespace SincResampler
} // namespace SRCTools
#endif // SINC_RESAMPLER_H
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