mirror of
https://github.com/f4exb/sdrangel.git
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392 lines
13 KiB
C++
392 lines
13 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015-2018 Edouard Griffiths, F4EXB //
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// Copyright (C) 2021 Jon Beniston, M7RCE //
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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 <cstddef>
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#include <cstring>
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#include <QDebug>
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#include <QDateTime>
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#include <QRegExp>
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#include "dsp/dspcommands.h"
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#include "util/simpleserializer.h"
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#include "util/message.h"
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#include "wavfilerecord.h"
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WavFileRecord::WavFileRecord(quint32 sampleRate, quint64 centerFrequency) :
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FileRecordInterface(),
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m_fileBase("test"),
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m_sampleRate(sampleRate),
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m_centerFrequency(centerFrequency),
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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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m_msShift(0)
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{
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setObjectName("WavFileRecord");
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}
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WavFileRecord::WavFileRecord(const QString& fileBase) :
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FileRecordInterface(),
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m_fileBase(fileBase),
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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("WavFileRecord");
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}
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WavFileRecord::~WavFileRecord()
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{
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stopRecording();
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}
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void WavFileRecord::setFileName(const QString& fileBase)
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{
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if (!m_recordOn)
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{
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m_fileBase = fileBase;
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}
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}
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void WavFileRecord::genUniqueFileName(uint deviceUID, int istream)
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{
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if (istream < 0) {
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setFileName(QString("rec%1_%2.wav").arg(deviceUID).arg(QDateTime::currentDateTimeUtc().toString("yyyy-MM-ddTHH_mm_ss_zzz")));
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} else {
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setFileName(QString("rec%1_%2_%3.wav").arg(deviceUID).arg(istream).arg(QDateTime::currentDateTimeUtc().toString("yyyy-MM-ddTHH_mm_ss_zzz")));
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}
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}
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void WavFileRecord::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(!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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if (SDR_RX_SAMP_SZ == 16)
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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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else
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{
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for (SampleVector::const_iterator it = begin; it != end; ++it)
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{
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// Convert from 24-bit to 16-bit
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int16_t samples[2];
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samples[0] = it->real() >> 8;
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samples[1] = it->imag() >> 8;
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m_sampleFile.write(reinterpret_cast<const char*>(&samples), 4);
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m_byteCount += 4;
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}
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}
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}
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}
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void WavFileRecord::start()
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{
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}
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void WavFileRecord::stop()
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{
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stopRecording();
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}
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bool WavFileRecord::startRecording()
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{
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if (m_recordOn) {
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stopRecording();
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}
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if (!m_sampleFile.is_open())
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{
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qDebug() << "WavFileRecord::startRecording";
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m_curentFileName = QString("%1.%2.wav").arg(m_fileBase).arg(QDateTime::currentDateTimeUtc().toString("yyyy-MM-ddTHH_mm_ss_zzz"));
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m_sampleFile.open(m_curentFileName.toStdString().c_str(), std::ios::binary);
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if (!m_sampleFile.is_open())
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{
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qWarning() << "WavFileRecord::startRecording: failed to open file: " << m_curentFileName;
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return false;
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}
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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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return true;
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}
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bool WavFileRecord::stopRecording()
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{
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if (m_sampleFile.is_open())
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{
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qDebug() << "WavFileRecord::stopRecording";
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// Fix up chunk sizes
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long fileSize = m_sampleFile.tellp();
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m_sampleFile.seekp(offsetof(Header, m_riffHeader.m_size));
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qint32 size = (fileSize - 8);
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m_sampleFile.write((char *)&size, 4);
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m_sampleFile.seekp(offsetof(Header, m_dataHeader.m_size));
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size = fileSize - sizeof(Header);
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m_sampleFile.write((char *)&size, 4);
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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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if (m_sampleFile.bad())
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{
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qWarning() << "WavFileRecord::stopRecording: an error occurred while writing to " << m_curentFileName;
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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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bool WavFileRecord::handleMessage(const Message& message)
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{
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if (DSPSignalNotification::match(message))
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{
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DSPSignalNotification& notif = (DSPSignalNotification&) message;
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int sampleRate = notif.getSampleRate();
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if ((sampleRate != (int)m_sampleRate) && m_recordOn) {
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qDebug() << "WavFileRecord::handleMessage: sample rate has changed. Creating a new .wav file";
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stopRecording();
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m_recordOn = true;
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}
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m_sampleRate = sampleRate;
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m_centerFrequency = notif.getCenterFrequency();
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qDebug() << "WavFileRecord::handleMessage: DSPSignalNotification: m_inputSampleRate: " << m_sampleRate
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<< " m_centerFrequency: " << m_centerFrequency;
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if (m_recordOn) {
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startRecording();
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}
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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 WavFileRecord::writeHeader()
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{
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Header header;
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header.m_riffHeader.m_id[0] = 'R';
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header.m_riffHeader.m_id[1] = 'I';
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header.m_riffHeader.m_id[2] = 'F';
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header.m_riffHeader.m_id[3] = 'F';
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header.m_riffHeader.m_size = 0; // Needs to be fixed on close
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header.m_type[0] = 'W';
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header.m_type[1] = 'A';
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header.m_type[2] = 'V';
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header.m_type[3] = 'E';
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header.m_fmtHeader.m_id[0] = 'f';
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header.m_fmtHeader.m_id[1] = 'm';
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header.m_fmtHeader.m_id[2] = 't';
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header.m_fmtHeader.m_id[3] = ' ';
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header.m_fmtHeader.m_size = 16;
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header.m_audioFormat = 1; // Linear PCM
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header.m_numChannels = 2; // I/Q
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header.m_sampleRate = m_sampleRate;
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// We always use 16-bits regardless of SDR_RX_SAMP_SZ
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header.m_byteRate = m_sampleRate * 2 * 16 / 8;
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header.m_blockAlign = 2 * 16 / 8;
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header.m_bitsPerSample = 16;
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header.m_auxiHeader.m_id[0] = 'a';
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header.m_auxiHeader.m_id[1] = 'u';
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header.m_auxiHeader.m_id[2] = 'x';
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header.m_auxiHeader.m_id[3] = 'i';
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header.m_auxiHeader.m_size = sizeof(Auxi);
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QDateTime now = QDateTime::currentDateTime();
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header.m_auxi.m_startTime.m_year = now.date().year();
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header.m_auxi.m_startTime.m_month = now.date().month();
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header.m_auxi.m_startTime.m_dayOfWeek = now.date().dayOfWeek();
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header.m_auxi.m_startTime.m_day = now.date().day();
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header.m_auxi.m_startTime.m_hour = now.time().hour();
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header.m_auxi.m_startTime.m_minute = now.time().minute();
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header.m_auxi.m_startTime.m_second = now.time().second();
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header.m_auxi.m_startTime.m_milliseconds = now.time().msec();
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header.m_auxi.m_stopTime.m_year = 0; // Needs to be fixed on close
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header.m_auxi.m_stopTime.m_month = 0;
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header.m_auxi.m_stopTime.m_dayOfWeek = 0;
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header.m_auxi.m_stopTime.m_day = 0;
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header.m_auxi.m_stopTime.m_hour = 0;
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header.m_auxi.m_stopTime.m_minute = 0;
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header.m_auxi.m_stopTime.m_second = 0;
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header.m_auxi.m_stopTime.m_milliseconds = 0;
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header.m_auxi.m_centerFreq = m_centerFrequency;
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header.m_auxi.m_adFrequency = m_sampleRate;
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header.m_auxi.m_ifFrequency = 0;
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header.m_auxi.m_bandwidth = 0;
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header.m_auxi.m_iqOffset = 0;
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header.m_auxi.m_unused2 = 0;
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header.m_auxi.m_unused3 = 0;
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header.m_auxi.m_unused4 = 0;
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header.m_auxi.m_unused5 = 0;
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memset(&header.m_auxi.m_nextFilename[0], 0, 96);
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header.m_dataHeader.m_size = sizeof(Auxi);
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header.m_dataHeader.m_id[0] = 'd';
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header.m_dataHeader.m_id[1] = 'a';
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header.m_dataHeader.m_id[2] = 't';
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header.m_dataHeader.m_id[3] = 'a';
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header.m_dataHeader.m_size = 0; // Needs to be fixed on close
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writeHeader(m_sampleFile, header);
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}
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bool WavFileRecord::readHeader(std::ifstream& sampleFile, Header& header)
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{
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memset(&header, 0, sizeof(Header));
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sampleFile.read((char *) &header, 8+4+8+16);
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if (!sampleFile)
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{
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qDebug() << "WavFileRecord::readHeader: End of file without reading header";
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return false;
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}
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if (strncmp(header.m_riffHeader.m_id, "RIFF", 4))
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{
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qDebug() << "WavFileRecord::readHeader: No RIFF header";
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return false;
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}
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if (strncmp(header.m_type, "WAVE", 4))
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{
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qDebug() << "WavFileRecord::readHeader: No WAVE header";
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return false;
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}
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if (strncmp(header.m_fmtHeader.m_id, "fmt ", 4))
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{
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qDebug() << "WavFileRecord::readHeader: No fmt header";
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return false;
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}
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if (header.m_audioFormat != 1)
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{
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qDebug() << "WavFileRecord::readHeader: Audio format is not PCM";
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return false;
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}
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if (header.m_numChannels != 2)
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{
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qDebug() << "WavFileRecord::readHeader: Number of channels is not 2";
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return false;
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}
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// FileInputWorker can't handle other bits sizes
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if (header.m_bitsPerSample != 16)
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{
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qDebug() << "WavFileRecord::readHeader: Number of bits per sample is not 16";
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return false;
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}
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Chunk chunkHeader;
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bool gotData = false;
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while (!gotData)
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{
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sampleFile.read((char *) &chunkHeader, 8);
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if (!sampleFile)
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{
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qDebug() << "WavFileRecord::readHeader: End of file without reading data header";
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return false;
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}
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if (!strncmp(chunkHeader.m_id, "auxi", 4))
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{
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memcpy(&header.m_auxiHeader, &chunkHeader, sizeof(Chunk));
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sampleFile.read((char *) &header.m_auxi, sizeof(Auxi));
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if (!sampleFile)
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return false;
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}
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else if (!strncmp(chunkHeader.m_id, "data", 4))
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{
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memcpy(&header.m_dataHeader, &chunkHeader, sizeof(Chunk));
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gotData = true;
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}
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}
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return true;
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}
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void WavFileRecord::writeHeader(std::ofstream& sampleFile, Header& header)
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{
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sampleFile.write((const char *) &header, sizeof(Header));
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}
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bool WavFileRecord::getCenterFrequency(QString fileName, quint64& centerFrequency)
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{
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// Attempt to extract center frequency from filename
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QRegExp freqkRE("(([0-9]+)kHz)");
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QRegExp freqRE("(([0-9]+)Hz)");
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if (freqkRE.indexIn(fileName))
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{
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centerFrequency = freqkRE.capturedTexts()[2].toLongLong() * 1000LL;
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return true;
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}
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else if (freqRE.indexIn(fileName))
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{
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centerFrequency = freqRE.capturedTexts()[2].toLongLong();
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return true;
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}
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return false;
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}
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bool WavFileRecord::getStartTime(QString fileName, QDateTime& startTime)
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{
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// Attempt to extract start time from filename
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QRegExp dateTimeRE("([12][0-9][0-9][0-9]).?([01][0-9]).?([0-3][0-9]).?([0-2][0-9]).?([0-5][0-9]).?([0-5][0-9])");
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if (dateTimeRE.indexIn(fileName) != -1)
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{
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startTime = QDateTime(QDate(
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dateTimeRE.capturedTexts()[1].toInt(),
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dateTimeRE.capturedTexts()[2].toInt(),
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dateTimeRE.capturedTexts()[3].toInt()),
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QTime(
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dateTimeRE.capturedTexts()[4].toInt(),
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dateTimeRE.capturedTexts()[5].toInt(),
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dateTimeRE.capturedTexts()[6].toInt()));
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return true;
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}
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return false;
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}
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QDateTime WavFileRecord::Header::getStartTime() const
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{
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return QDateTime(QDate(m_auxi.m_startTime.m_year,
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m_auxi.m_startTime.m_month,
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m_auxi.m_startTime.m_day),
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QTime(m_auxi.m_startTime.m_hour,
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m_auxi.m_startTime.m_minute,
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m_auxi.m_startTime.m_second,
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m_auxi.m_startTime.m_milliseconds));
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}
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