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			86 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			86 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015-2018 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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// (at your option) any later version.                                           //
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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_FILERECORD_H
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#define INCLUDE_FILERECORD_H
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#include <dsp/basebandsamplesink.h>
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <ctime>
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#include "dsp/filerecordinterface.h"
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#include "export.h"
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class Message;
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class SDRBASE_API FileRecord : public FileRecordInterface {
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public:
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#pragma pack(push, 1)
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    struct Header
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    {
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    	quint32 sampleRate;
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        quint64 centerFrequency;
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        quint64 startTimeStamp;
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        quint32 sampleSize;
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        quint32 filler;
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        quint32 crc32;
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    };
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#pragma pack(pop)
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	FileRecord(quint32 sampleRate=0, quint64 centerFrequency=0);
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    FileRecord(const QString& fileBase);
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	virtual ~FileRecord();
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    quint64 getByteCount() const { return m_byteCount; }
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    void setMsShift(qint64 shift) { m_msShift = shift; }
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    const QString& getCurrentFileName() { return m_currentFileName; }
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    void genUniqueFileName(uint deviceUID, int istream = -1);
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	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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	virtual void start();
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	virtual void stop();
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	virtual bool handleMessage(const Message& message);
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    virtual void setFileName(const QString& fileBase);
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    virtual bool startRecording();
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    virtual bool stopRecording();
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    virtual bool isRecording() const { return m_recordOn; }
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    static bool readHeader(std::ifstream& samplefile, Header& header); //!< returns true if CRC checksum is correct else false
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    static void writeHeader(std::ofstream& samplefile, Header& header);
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private:
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	QString m_fileBase;
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	quint32 m_sampleRate;
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	quint64 m_centerFrequency;
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	bool m_recordOn;
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    bool m_recordStart;
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    std::ofstream m_sampleFile;
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    QString m_currentFileName;
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    quint64 m_byteCount;
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    qint64 m_msShift;
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    QRecursiveMutex m_mutex;
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    void writeHeader();
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};
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#endif // INCLUDE_FILERECORD_H
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