sdrangel/sdrbase/dsp/samplesinkfifo.h

82 wiersze
3.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// Copyright (C) 2015-2016, 2018-2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
// //
// 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 <QRecursiveMutex>
#include <QElapsedTimer>
#include "dsp/dsptypes.h"
#include "export.h"
class SDRBASE_API SampleSinkFifo : public QObject {
Q_OBJECT
private:
QElapsedTimer m_msgRateTimer;
int m_suppressed;
SampleVector m_data;
int m_total;
unsigned int m_writtenSignalCount;
unsigned int m_writtenSignalRateDivider;
QRecursiveMutex m_mutex;
unsigned int m_size;
unsigned int m_fill;
unsigned int m_head;
unsigned int m_tail;
QString m_label;
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);
void reset();
void setWrittenSignalRateDivider(unsigned int divider);
inline unsigned int size() { QMutexLocker mutexLocker(&m_mutex); unsigned int size = m_size; return size; }
inline unsigned int fill() { QMutexLocker mutexLocker(&m_mutex); unsigned int fill = m_fill; return fill; }
unsigned int write(const quint8* data, unsigned int count);
unsigned int write(SampleVector::const_iterator begin, SampleVector::const_iterator end);
unsigned int read(SampleVector::iterator begin, SampleVector::iterator end);
unsigned int readBegin(unsigned int count,
SampleVector::iterator* part1Begin, SampleVector::iterator* part1End,
SampleVector::iterator* part2Begin, SampleVector::iterator* part2End);
unsigned int readCommit(unsigned int count);
void setLabel(const QString& label) { m_label = label; }
static unsigned int getSizePolicy(unsigned int sampleRate);
signals:
void dataReady();
void written(int nsamples, qint64 timestamp);
void overflow(int nsamples);
void underflow(int nsamples);
};
#endif // INCLUDE_SAMPLEFIFO_H