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sdrangel/sdrbase/audio/audioresampler.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 F4EXB //
// written by Edouard Griffiths //
// //
// 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 as 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 V3 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 SDRBASE_AUDIO_AUDIORESAMPLER_H_
#define SDRBASE_AUDIO_AUDIORESAMPLER_H_
#include "dsp/dsptypes.h"
#include "audiofilter.h"
class AudioResampler
{
public:
AudioResampler();
~AudioResampler();
void setDecimation(uint32_t decimation);
uint32_t getDecimation() const { return m_decimation; }
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void setAudioFilters(int srHigh, int srLow, int fcLow, int fcHigh, float gain=1.0f);
bool downSample(qint16 sampleIn, qint16& sampleOut);
bool upSample(qint16 sampleIn, qint16& sampleOut);
private:
AudioFilter m_audioFilter;
uint32_t m_decimation;
uint32_t m_decimationCount;
};
#endif /* SDRBASE_AUDIO_AUDIORESAMPLER_H_ */