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sdrangel/plugins/channelrx/demoddatv/datvideostream.h

77 lines
2.8 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 F4HKW //
// for F4EXB / SDRAngel //
// //
// 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 DATVIDEOSTREAM_H
#define DATVIDEOSTREAM_H
#include <QIODevice>
#include <QQueue>
#include <QByteArray>
#include <QEventLoop>
#include <QMutex>
#include <QThread>
class DATVideostream : public QIODevice
{
Q_OBJECT
public:
DATVideostream();
virtual ~DATVideostream();
int pushData(const char * chrData, int intSize);
void resetTotalReceived();
void cleanUp();
void setMultiThreaded(bool multiThreaded);
void setThreadTimeout(int timeOut) { m_threadTimeout = timeOut; }
virtual bool isSequential() const;
virtual qint64 bytesAvailable() const;
virtual void close();
virtual bool open(OpenMode mode);
static const int m_defaultMemoryLimit = 2820000;
static const int m_minStackSize = 4;
signals:
void dataAvailable();
void fifoData(int intDataBytes, int intPercentBuffer, qint64 intTotalReceived);
protected:
virtual qint64 readData(char *data, qint64 len);
virtual qint64 writeData(const char *data, qint64 len);
virtual qint64 readLineData(char *data, qint64 maxSize);
private:
QQueue<QByteArray> m_fifo;
bool m_multiThreaded;
int m_threadTimeout;
QEventLoop m_eventLoop;
QMutex m_mutex;
int m_memoryLimit;
int m_bytesAvailable;
int m_bytesWaiting;
int m_percentBuffer;
qint64 m_totalReceived;
qint64 m_packetReceived;
};
#endif // DATVIDEOSTREAM_H