sdrangel/plugins/samplesource/fileinput/fileinputworker.h

96 wiersze
3.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015-2019 Edouard Griffiths, F4EXB //
// //
// 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_FILEINPUTWORKER_H
#define INCLUDE_FILEINPUTWORKER_H
#include <QTimer>
#include <QElapsedTimer>
#include <iostream>
#include <fstream>
#include <cstdlib>
#include "dsp/inthalfbandfilter.h"
#include "util/message.h"
#define FILESOURCE_THROTTLE_MS 50
class SampleSinkFifo;
class MessageQueue;
class FileInputWorker : public QObject {
Q_OBJECT
public:
class MsgReportEOF : public Message {
MESSAGE_CLASS_DECLARATION
public:
static MsgReportEOF* create() {
return new MsgReportEOF();
}
private:
MsgReportEOF() :
Message()
{ }
};
FileInputWorker(std::ifstream *samplesStream,
SampleSinkFifo* sampleFifo,
const QTimer& timer,
MessageQueue *fileInputMessageQueue,
QObject* parent = NULL);
~FileInputWorker();
void startWork();
void stopWork();
void setSampleRateAndSize(int samplerate, quint32 samplesize);
void setBuffers(std::size_t chunksize);
bool isRunning() const { return m_running; }
quint64 getSamplesCount() const { return m_samplesCount; }
void setSamplesCount(quint64 samplesCount) { m_samplesCount = samplesCount; }
private:
volatile bool m_running;
std::ifstream* m_ifstream;
quint8 *m_fileBuf;
quint8 *m_convertBuf;
std::size_t m_bufsize;
qint64 m_chunksize;
SampleSinkFifo* m_sampleFifo;
quint64 m_samplesCount;
const QTimer& m_timer;
MessageQueue *m_fileInputMessageQueue;
int m_samplerate; //!< File I/Q stream original sample rate
quint64 m_samplesize; //!< File effective sample size in bits (I or Q). Ex: 16, 24.
quint64 m_samplebytes; //!< Number of bytes used to store a I or Q sample. Ex: 2. 4.
qint64 m_throttlems;
QElapsedTimer m_elapsedTimer;
bool m_throttleToggle;
//void decimate1(SampleVector::iterator* it, const qint16* buf, qint32 len);
void writeToSampleFifo(const quint8* buf, qint32 nbBytes);
private slots:
void tick();
};
#endif // INCLUDE_FILEINPUTWORKER_H