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https://github.com/f4exb/sdrangel.git
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134 lines
3.2 KiB
C++
134 lines
3.2 KiB
C++
#include "dsp/filesink.h"
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#include "dsp/dspcommands.h"
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#include "util/simpleserializer.h"
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#include "util/messagequeue.h"
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#include <QDebug>
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MESSAGE_CLASS_DEFINITION(FileSink::MsgConfigureFileSink, Message)
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FileSink::FileSink() :
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SampleSink(),
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m_fileName(std::string("test.sdriq")),
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m_sampleRate(0),
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m_centerFrequency(0),
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m_recordOn(false),
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m_recordStart(false),
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m_byteCount(0)
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{
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setObjectName("FileSink");
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}
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FileSink::~FileSink()
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{
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stopRecording();
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}
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void FileSink::configure(MessageQueue* msgQueue, const std::string& filename)
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{
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Message* cmd = MsgConfigureFileSink::create(filename);
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msgQueue->push(cmd);
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}
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void FileSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly)
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{
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// if no recording is active, send the samples to /dev/null
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if(!m_recordOn)
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return;
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if (begin < end) // if there is something to put out
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{
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if (m_recordStart)
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{
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writeHeader();
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m_recordStart = false;
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}
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m_sampleFile.write(reinterpret_cast<const char*>(&*(begin)), (end - begin)*sizeof(Sample));
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m_byteCount += end - begin;
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}
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}
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void FileSink::start()
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{
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}
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void FileSink::stop()
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{
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stopRecording();
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}
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void FileSink::startRecording()
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{
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if (!m_sampleFile.is_open())
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{
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qDebug() << "FileSink::startRecording";
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m_sampleFile.open(m_fileName.c_str(), std::ios::binary);
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m_recordOn = true;
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m_recordStart = true;
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m_byteCount = 0;
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}
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}
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void FileSink::stopRecording()
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{
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if (m_sampleFile.is_open())
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{
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qDebug() << "FileSink::stopRecording";
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m_sampleFile.close();
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m_recordOn = false;
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m_recordStart = false;
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}
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}
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bool FileSink::handleMessage(const Message& message)
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{
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qDebug() << "FileSink::handleMessage";
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if (DSPSignalNotification::match(message))
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{
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DSPSignalNotification& notif = (DSPSignalNotification&) message;
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m_sampleRate = notif.getSampleRate();
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m_centerFrequency = notif.getCenterFrequency();
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qDebug() << "FileSink::handleMessage: DSPSignalNotification: m_inputSampleRate: " << m_sampleRate
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<< " m_centerFrequency: " << m_centerFrequency;
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return true;
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}
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else if (MsgConfigureFileSink::match(message))
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{
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MsgConfigureFileSink& conf = (MsgConfigureFileSink&) message;
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handleConfigure(conf.getFileName());
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qDebug() << "FileSink::handleMessage: MsgConfigureFileSink: fileName: " << m_fileName.c_str();
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return true;
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}
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else
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{
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return false;
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}
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}
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void FileSink::handleConfigure(const std::string& fileName)
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{
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if (fileName != m_fileName)
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{
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stopRecording();
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}
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m_fileName = fileName;
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}
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void FileSink::writeHeader()
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{
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m_sampleFile.write((const char *) &m_sampleRate, sizeof(int));
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m_sampleFile.write((const char *) &m_centerFrequency, sizeof(quint64));
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std::time_t ts = time(0);
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m_sampleFile.write((const char *) &ts, sizeof(std::time_t));
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}
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void FileSink::readHeader(std::ifstream& sampleFile, Header& header)
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{
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sampleFile.read((char *) &(header.sampleRate), sizeof(int));
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sampleFile.read((char *) &(header.centerFrequency), sizeof(quint64));
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sampleFile.read((char *) &(header.startTimeStamp), sizeof(std::time_t));
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}
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