mirror of
https://github.com/JvanKatwijk/qt-dab.git
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90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
#
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/*
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* Copyright (C) 2016 .. 2023
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* Jan van Katwijk (J.vanKatwijk@gmail.com)
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* Lazy Chair Computing
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*
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* This file is part of Qt-DAB
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*
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* Qt-DAB is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Qt-DAB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Qt-DAB; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#
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#pragma once
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/*
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* Reading the samples from the input device. Since it has its own
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* "state", we embed it into its own class
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*/
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#include "dab-constants.h"
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#include <QObject>
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#include <cstdint>
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#include <atomic>
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#include <vector>
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#include "device-handler.h"
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#include "ringbuffer.h"
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#include "riffWriter.h"
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//
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// Note:
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// It was found that enlarging the buffersize to e.g. 8192
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// cannot be handled properly by the underlying system.
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#define DUMPSIZE 4096
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class RadioInterface;
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class sampleReader : public QObject {
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Q_OBJECT
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public:
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sampleReader (RadioInterface *mr,
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deviceHandler *theRig,
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RingBuffer<Complex> *spectrumBuffer = nullptr);
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~sampleReader ();
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void setRunning (bool b);
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float getSLevel ();
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Complex getSample (float);
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void getSamples (std::vector<Complex> &v,
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int index,
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int32_t n, int32_t phase, bool saving);
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void startDumping (const QString &, int, int, const QString);
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void stopDumping ();
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private:
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riffWriter sourceDumper;
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RadioInterface *myRadioInterface;
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deviceHandler *theRig;
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RingBuffer<Complex> *spectrumBuffer;
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std::vector<Complex> localBuffer;
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int32_t localCounter;
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int32_t bufferSize;
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int32_t currentPhase;
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std::atomic<bool> running;
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int32_t bufferContent;
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float sLevel;
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int32_t sampleCount;
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int32_t corrector;
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bool dumping;
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int16_t dumpIndex;
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int16_t dumpScale;
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int16_t dumpBuffer [DUMPSIZE];
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// std::atomic<SNDFILE *> dumpfilePointer;
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int repetitionCounter;
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bool dcRemoval;
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DABFLOAT dcReal;
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DABFLOAT dcImag;
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signals:
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void show_spectrum (int);
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void show_dcOffset (float);
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};
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