sdrangel/sdrbase/dsp/samplesinkfifo.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// //
// 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 INCLUDE_SAMPLEFIFO_H
#define INCLUDE_SAMPLEFIFO_H
#include <QObject>
#include <QMutex>
#include <QElapsedTimer>
#include "dsp/dsptypes.h"
#include "export.h"
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class SDRBASE_API SampleSinkFifo : public QObject {
Q_OBJECT
private:
QElapsedTimer m_msgRateTimer;
int m_suppressed;
SampleVector m_data;
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QMutex m_mutex;
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unsigned int m_size;
unsigned int m_fill;
unsigned int m_head;
unsigned int m_tail;
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void create(unsigned int s);
public:
SampleSinkFifo(QObject* parent = nullptr);
SampleSinkFifo(int size, QObject* parent = nullptr);
SampleSinkFifo(const SampleSinkFifo& other);
~SampleSinkFifo();
bool setSize(int size);
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void reset();
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inline unsigned int size() { QMutexLocker mutexLocker(&m_mutex); unsigned int size = m_size; return size; }
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inline unsigned int fill() { QMutexLocker mutexLocker(&m_mutex); unsigned int fill = m_fill; return fill; }
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unsigned int write(const quint8* data, unsigned int count);
unsigned int write(SampleVector::const_iterator begin, SampleVector::const_iterator end);
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unsigned int read(SampleVector::iterator begin, SampleVector::iterator end);
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unsigned int readBegin(unsigned int count,
SampleVector::iterator* part1Begin, SampleVector::iterator* part1End,
SampleVector::iterator* part2Begin, SampleVector::iterator* part2End);
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unsigned int readCommit(unsigned int count);
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static unsigned int getSizePolicy(unsigned int sampleRate);
signals:
void dataReady();
};
#endif // INCLUDE_SAMPLEFIFO_H