sdrangel/sdrbase/dsp/filerecord.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015-2018 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_FILERECORD_H
#define INCLUDE_FILERECORD_H
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#include <dsp/basebandsamplesink.h>
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#include <string>
#include <iostream>
#include <fstream>
#include <ctime>
#include "export.h"
class Message;
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class SDRBASE_API FileRecord : public BasebandSampleSink {
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public:
#pragma pack(push, 1)
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struct Header
{
quint32 sampleRate;
quint64 centerFrequency;
quint64 startTimeStamp;
quint32 sampleSize;
quint32 filler;
quint32 crc32;
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};
#pragma pack(pop)
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FileRecord();
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FileRecord(const QString& filename);
virtual ~FileRecord();
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quint64 getByteCount() const { return m_byteCount; }
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void setFileName(const QString& filename);
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();
virtual void stop();
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virtual bool handleMessage(const Message& message);
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void startRecording();
void stopRecording();
bool isRecording() const { return m_recordOn; }
static bool readHeader(std::ifstream& samplefile, Header& header); //!< returns true if CRC checksum is correct else false
static void writeHeader(std::ofstream& samplefile, Header& header);
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private:
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QString m_fileName;
quint32 m_sampleRate;
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quint64 m_centerFrequency;
bool m_recordOn;
bool m_recordStart;
std::ofstream m_sampleFile;
quint64 m_byteCount;
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void handleConfigure(const QString& fileName);
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void writeHeader();
};
#endif // INCLUDE_FILERECORD_H