kopia lustrzana https://github.com/f4exb/sdrangel
270 wiersze
9.4 KiB
C++
270 wiersze
9.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 Edouard Griffiths, F4EXB //
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// //
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// File recorder in SigMF format single channel for SI plugins //
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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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#include <QCoreApplication>
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#include <QSysInfo>
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#include <QDebug>
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#include "libsigmf/sigmf_core_generated.h"
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#include "libsigmf/sigmf_sdrangel_generated.h"
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#include "libsigmf/sigmf.h"
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#include "dsp/dspcommands.h"
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//#include "util/sha512.h" - SHA512 is skipped because it takes too long
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#include "sigmffilerecord.h"
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SigMFFileRecord::SigMFFileRecord() :
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FileRecordInterface(),
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m_fileName("test"),
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m_sampleRate(0),
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m_centerFrequency(0),
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m_msShift(0),
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m_recordOn(false),
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m_recordStart(true),
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m_sampleStart(0),
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m_sampleCount(0)
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{
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qDebug("SigMFFileRecord::SigMFFileRecord: test");
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setObjectName("SigMFFileSink");
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m_metaRecord = new sigmf::SigMF<sigmf::Global<core::DescrT, sdrangel::DescrT>,
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sigmf::Capture<core::DescrT, sdrangel::DescrT>,
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sigmf::Annotation<core::DescrT> >();
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}
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SigMFFileRecord::SigMFFileRecord(const QString& fileName, const QString& hardwareId) :
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FileRecordInterface(),
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m_hardwareId(hardwareId),
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m_fileName(fileName),
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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(true),
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m_sampleStart(0),
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m_sampleCount(0)
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{
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qDebug("SigMFFileRecord::SigMFFileRecord: %s", qPrintable(fileName));
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setObjectName("SigMFFileSink");
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m_metaRecord = new sigmf::SigMF<sigmf::Global<core::DescrT, sdrangel::DescrT>,
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sigmf::Capture<core::DescrT, sdrangel::DescrT>,
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sigmf::Annotation<core::DescrT> >();
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}
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SigMFFileRecord::~SigMFFileRecord()
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{
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qDebug("SigMFFileRecord::~SigMFFileRecord");
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stopRecording();
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if (m_metaFile.is_open()) {
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m_metaFile.close();
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}
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if (m_sampleFile.is_open()) {
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m_sampleFile.close();
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}
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delete m_metaRecord;
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}
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void SigMFFileRecord::setFileName(const QString& fileName)
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{
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if (!m_recordOn)
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{
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qDebug("SigMFFileRecord::setFileName: %s", qPrintable(fileName));
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if (m_metaFile.is_open()) {
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m_metaFile.close();
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}
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if (m_sampleFile.is_open()) {
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m_sampleFile.close();
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}
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m_fileName = fileName;
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m_recordStart = true;
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}
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}
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unsigned int SigMFFileRecord::getNbCaptures() const
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{
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return m_metaRecord->captures.size();
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}
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bool SigMFFileRecord::startRecording()
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{
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bool success = true;
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if (m_recordStart)
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{
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qDebug("SigMFFileRecord::startRecording: new record %s", qPrintable(m_fileName));
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clearMeta();
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m_sampleStart = 0;
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m_sampleFileName = m_fileName + ".sigmf-data";
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m_metaFileName = m_fileName + ".sigmf-meta";
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m_sampleFile.open(m_sampleFileName.toStdString().c_str(), std::ios::binary);
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if (!m_sampleFile.is_open())
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{
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qWarning() << "SigMFFileRecord::startRecording: failed to open file: " << m_sampleFileName;
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success = false;
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}
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m_metaFile.open(m_metaFileName.toStdString().c_str(), std::ofstream::out);
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if (!m_metaFile.is_open())
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{
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qWarning() << "SigMFFileRecord::startRecording: failed to open file: " << m_metaFileName;
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success = false;
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}
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makeHeader();
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m_recordStart = false;
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}
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else
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{
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qDebug("SigMFFileRecord::startRecording: start new capture");
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}
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m_captureStartDT = QDateTime::currentDateTimeUtc().addMSecs(m_msShift);
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m_recordOn = true;
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m_sampleCount = 0;
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return success;
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}
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bool SigMFFileRecord::stopRecording()
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{
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if (m_recordOn)
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{
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qDebug("SigMFFileRecord::stopRecording: file previous capture");
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makeCapture();
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m_recordOn = false;
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if (m_sampleFile.bad())
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{
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qWarning() << "SigMFFileRecord::stopRecording: an error occurred while writing to " << m_sampleFileName;
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return false;
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}
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if (m_metaFile.bad())
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{
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qWarning() << "SigMFFileRecord::stopRecording: an error occurred while writing to " << m_metaFileName;
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return false;
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}
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}
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return true;
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}
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void SigMFFileRecord::makeHeader()
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{
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m_metaRecord->global.access<core::GlobalT>().author = "SDRangel";
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m_metaRecord->global.access<core::GlobalT>().description = "SDRangel SigMF I/Q recording file";
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m_metaRecord->global.access<core::GlobalT>().sample_rate = m_sampleRate;
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m_metaRecord->global.access<core::GlobalT>().hw = m_hardwareId.toStdString();
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m_metaRecord->global.access<core::GlobalT>().recorder = QString(QCoreApplication::applicationName()).toStdString();
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m_metaRecord->global.access<core::GlobalT>().version = "0.0.2";
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m_metaRecord->global.access<sdrangel::GlobalT>().version = QString(QCoreApplication::applicationVersion()).toStdString();
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m_metaRecord->global.access<sdrangel::GlobalT>().qt_version = QT_VERSION_STR;
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m_metaRecord->global.access<sdrangel::GlobalT>().rx_bits = SDR_RX_SAMP_SZ;
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m_metaRecord->global.access<sdrangel::GlobalT>().arch = QString(QSysInfo::currentCpuArchitecture()).toStdString();
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m_metaRecord->global.access<sdrangel::GlobalT>().os = QString(QSysInfo::prettyProductName()).toStdString();
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QString endianSuffix = QSysInfo::ByteOrder == QSysInfo::LittleEndian ? "le" : "be";
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int size = 8*sizeof(FixReal);
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m_metaRecord->global.access<core::GlobalT>().datatype = QString("ci%1_%2").arg(size).arg(endianSuffix).toStdString();
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}
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void SigMFFileRecord::makeCapture()
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{
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if (m_sampleCount)
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{
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qDebug("SigMFFileRecord::makeCapture: m_sampleStart: %llu m_sampleCount: %llu", m_sampleStart, m_sampleCount);
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// Flush samples to disk
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m_sampleFile.flush();
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// calculate SHA512 and write it to header
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// m_metaRecord->global.access<core::GlobalT>().sha512 = sw::sha512::file(m_sampleFileName.toStdString()); // skip takes too long
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// Add new capture
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auto recording_capture = sigmf::Capture<core::DescrT, sdrangel::DescrT>();
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recording_capture.get<core::DescrT>().frequency = m_centerFrequency;
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recording_capture.get<core::DescrT>().sample_start = m_sampleStart;
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recording_capture.get<core::DescrT>().length = m_sampleCount;
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recording_capture.get<core::DescrT>().datetime = m_captureStartDT.toString("yyyy-MM-ddTHH:mm:ss.zzzZ").toStdString();
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recording_capture.get<sdrangel::DescrT>().sample_rate = m_sampleRate;
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recording_capture.get<sdrangel::DescrT>().tsms = m_captureStartDT.toMSecsSinceEpoch();
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m_metaRecord->captures.emplace_back(recording_capture);
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m_sampleStart += m_sampleCount;
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// Flush meta to disk
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m_metaFile.seekp(0);
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std::string jsonRecord = json(*m_metaRecord).dump(2);
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m_metaFile << jsonRecord;
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m_metaFile.flush();
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}
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else
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{
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qDebug("SigMFFileRecord::makeCapture: skipped because of no samples");
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}
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}
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void SigMFFileRecord::clearMeta()
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{
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m_metaRecord->captures.clear();
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}
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void SigMFFileRecord::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly)
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{
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(void) positiveOnly;
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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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m_sampleFile.write(reinterpret_cast<const char*>(&*(begin)), (end - begin)*sizeof(Sample));
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m_sampleCount += end - begin;
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}
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}
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void SigMFFileRecord::start()
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{
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}
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void SigMFFileRecord::stop()
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{
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stopRecording();
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}
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bool SigMFFileRecord::handleMessage(const Message& message)
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{
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if (DSPSignalNotification::match(message))
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{
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if (m_recordOn) {
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makeCapture();
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m_captureStartDT = QDateTime::currentDateTimeUtc();
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m_sampleCount = 0;
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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() << "SigMFFileRecord::handleMessage: DSPSignalNotification: "
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<< " 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
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{
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return false;
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}
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}
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