mirror of
https://github.com/f4exb/sdrangel.git
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147 lines
4.6 KiB
C++
147 lines
4.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 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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// //
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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 <QDebug>
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#include <QAudio>
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#include <QAudioDeviceInfo>
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#include <QAudioInput>
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#include <QAudioFormat>
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#include <QIODevice>
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#include <QList>
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#include <stdio.h>
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#include <errno.h>
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#include "fcdproplusreader.h"
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#include "dsp/samplesinkfifo.h"
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#include "fcdtraits.h"
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FCDProPlusReader::FCDProPlusReader(SampleSinkFifo* sampleFifo, QObject* parent) :
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QObject(parent),
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m_fcdAudioInput(0),
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m_fcdInput(0),
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m_running(false),
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m_convertBuffer(fcd_traits<ProPlus>::convBufSize),
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m_fcdBuffer(fcd_traits<ProPlus>::fcdBufSize, 0),
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m_sampleFifo(sampleFifo)
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{
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}
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FCDProPlusReader::~FCDProPlusReader()
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{
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if (m_fcdAudioInput) {
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delete m_fcdAudioInput;
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}
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}
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void FCDProPlusReader::startWork()
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{
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QList<QAudioDeviceInfo> audioDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
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QList<QAudioDeviceInfo>::iterator audioDeviceIt, fcdDeviceIt = audioDevices.end();
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for (audioDeviceIt = audioDevices.begin(); audioDeviceIt != audioDevices.end(); ++audioDeviceIt)
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{
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QAudioFormat fcdAudioFormat = audioDeviceIt->preferredFormat();
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int sampleRate = fcdAudioFormat.sampleRate();
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int sampleBits = fcdAudioFormat.sampleSize();
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if ((sampleRate == 192000) && (sampleBits == 16))
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{
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qDebug() << "FCDProPlusReader::startWork: found: " << audioDeviceIt->deviceName()
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<< " sampleRate: " << fcdAudioFormat.sampleRate()
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<< " sampleBits: " << fcdAudioFormat.sampleSize();
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fcdDeviceIt = audioDeviceIt;
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break;
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}
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}
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if (fcdDeviceIt == audioDevices.end())
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{
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qCritical() << "FCDProPlusReader::startWork: FCD Pro+ sound card not found";
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return;
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}
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openFcdAudio(*fcdDeviceIt);
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if (!m_fcdAudioInput)
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{
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qCritical() << "FCDProPlusReader::startWork: cannot open FCD Pro+ sound card";
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return;
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}
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m_fcdAudioInput->stop();
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m_fcdInput = m_fcdAudioInput->start();
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if (!m_fcdInput)
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{
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qCritical() << "FCDProPlusReader::startWork: cannot start FCD Pro+ sound card";
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return;
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}
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connect(m_fcdInput, SIGNAL(readyRead()), this, SLOT(readFcdAudio()));
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m_running = true;
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qDebug() << "FCDProPlusReader::startWork: started";
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}
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void FCDProPlusReader::stopWork()
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{
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m_running = false;
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disconnect(m_fcdInput, SIGNAL(readyRead()), this, SLOT(readFcdAudio()));
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m_fcdAudioInput->stop();
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qDebug() << "FCDProPlusReader::stopWork: stopped";
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}
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void FCDProPlusReader::openFcdAudio(const QAudioDeviceInfo& fcdAudioDeviceInfo)
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{
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QAudioFormat fcdAudioFormat = fcdAudioDeviceInfo.preferredFormat();
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qDebug() << "FCDProPlusReader::openFcdAudio: device: " << fcdAudioDeviceInfo.deviceName()
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<< " sampleRate: " << fcdAudioFormat.sampleRate()
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<< " sampleBits: " << fcdAudioFormat.sampleSize();
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m_fcdAudioInput = new QAudioInput(fcdAudioDeviceInfo, fcdAudioFormat, this);
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//m_fcdAudioInput->setBufferSize(1<<14);
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//m_fcdAudioInput->setNotifyInterval(50);
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}
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void FCDProPlusReader::readFcdAudio()
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{
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if (!m_fcdAudioInput) {
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return;
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}
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int len = m_fcdAudioInput->bytesReady();
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// qDebug() << "FCDProPlusReader::readFcdAudio:"
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// << " buffer size: " << m_fcdAudioInput->bufferSize()
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// << " interval: " << m_fcdAudioInput->notifyInterval()
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// << " len: " << len;
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if (len > fcd_traits<ProPlus>::fcdBufSize) {
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len = fcd_traits<ProPlus>::fcdBufSize;
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}
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int readLen = m_fcdInput->read(m_fcdBuffer.data(), len);
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if (readLen > 0) {
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m_sampleFifo->write((const quint8*) m_fcdBuffer.constData(), (uint) readLen);
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}
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}
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