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80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 Edouard Griffiths, F4EXB //
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// //
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// This program 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 as version 3 of the License, or //
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// //
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// This program 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 V3 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 this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_FILESOURCETHREAD_H
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#define INCLUDE_FILESOURCETHREAD_H
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#include <QThread>
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#include <QMutex>
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#include <QWaitCondition>
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#include <QTimer>
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#include <QElapsedTimer>
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#include <iostream>
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#include <fstream>
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#include <cstdlib>
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#include "dsp/inthalfbandfilter.h"
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#define FILESOURCE_THROTTLE_MS 50
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class SampleSinkFifo;
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class FileSourceThread : public QThread {
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Q_OBJECT
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public:
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FileSourceThread(std::ifstream *samplesStream, SampleSinkFifo* sampleFifo, QObject* parent = NULL);
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~FileSourceThread();
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void startWork();
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void stopWork();
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void setSampleRateAndSize(int samplerate, quint32 samplesize);
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void setBuffers(std::size_t chunksize);
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bool isRunning() const { return m_running; }
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std::size_t getSamplesCount() const { return m_samplesCount; }
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void setSamplesCount(int samplesCount) { m_samplesCount = samplesCount; }
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void connectTimer(const QTimer& timer);
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private:
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QMutex m_startWaitMutex;
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QWaitCondition m_startWaiter;
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volatile bool m_running;
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std::ifstream* m_ifstream;
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quint8 *m_fileBuf;
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quint8 *m_convertBuf;
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std::size_t m_bufsize;
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std::size_t m_chunksize;
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SampleSinkFifo* m_sampleFifo;
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std::size_t m_samplesCount;
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int m_samplerate; //!< File I/Q stream original sample rate
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quint32 m_samplesize; //!< File effective sample size in bits (I or Q). Ex: 16, 24.
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quint32 m_samplebytes; //!< Number of bytes used to store a I or Q sample. Ex: 2. 4.
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int m_throttlems;
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QElapsedTimer m_elapsedTimer;
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bool m_throttleToggle;
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void run();
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//void decimate1(SampleVector::iterator* it, const qint16* buf, qint32 len);
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void writeToSampleFifo(const quint8* buf, qint32 nbBytes);
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private slots:
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void tick();
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};
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#endif // INCLUDE_FILESOURCETHREAD_H
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