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) 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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// (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 <QUdpSocket>
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#include <QDebug>
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#include <QTimer>
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#include "dsp/dspcommands.h"
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#include "dsp/dspengine.h"
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#include "device/deviceapi.h"
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#include "remoteinputudphandler.h"
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#include "remoteinput.h"
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MESSAGE_CLASS_DEFINITION(RemoteInputUDPHandler::MsgReportSampleRateChange, Message)
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RemoteInputUDPHandler::RemoteInputUDPHandler(SampleSinkFifo *sampleFifo, DeviceAPI *deviceAPI) :
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m_deviceAPI(deviceAPI),
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m_masterTimer(deviceAPI->getMasterTimer()),
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m_masterTimerConnected(false),
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m_running(false),
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m_rateDivider(1000/REMOTEINPUT_THROTTLE_MS),
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m_dataSocket(0),
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m_dataAddress(QHostAddress::LocalHost),
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m_remoteAddress(QHostAddress::LocalHost),
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m_dataPort(9090),
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m_dataConnected(false),
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m_udpBuf(0),
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m_udpReadBytes(0),
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m_sampleFifo(sampleFifo),
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m_samplerate(0),
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m_centerFrequency(0),
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m_tv_msec(0),
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m_messageQueueToGUI(0),
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m_tickCount(0),
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m_samplesCount(0),
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m_timer(0),
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m_throttlems(REMOTEINPUT_THROTTLE_MS),
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m_readLengthSamples(0),
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m_readLength(0),
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m_converterBuffer(0),
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m_converterBufferNbSamples(0),
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m_throttleToggle(false),
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m_autoCorrBuffer(true)
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{
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m_udpBuf = new char[RemoteUdpSize];
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#ifdef USE_INTERNAL_TIMER
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#warning "Uses internal timer"
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m_timer = new QTimer();
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m_timer->start(50);
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m_throttlems = m_timer->interval();
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#else
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m_throttlems = m_masterTimer.interval();
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#endif
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m_rateDivider = 1000 / m_throttlems;
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}
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RemoteInputUDPHandler::~RemoteInputUDPHandler()
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{
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stop();
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delete[] m_udpBuf;
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if (m_converterBuffer) { delete[] m_converterBuffer; }
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#ifdef USE_INTERNAL_TIMER
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if (m_timer) {
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delete m_timer;
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}
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#endif
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}
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void RemoteInputUDPHandler::start()
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{
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qDebug("RemoteInputUDPHandler::start");
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if (m_running) {
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return;
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}
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if (!m_dataSocket)
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{
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m_dataSocket = new QUdpSocket(this);
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}
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if (!m_dataConnected)
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{
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connect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead())); //, Qt::QueuedConnection);
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if (m_dataSocket->bind(m_dataAddress, m_dataPort))
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{
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qDebug("RemoteInputUDPHandler::start: bind data socket to %s:%d", m_dataAddress.toString().toStdString().c_str(), m_dataPort);
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m_dataConnected = true;
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}
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else
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{
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qWarning("RemoteInputUDPHandler::start: cannot bind data port %d", m_dataPort);
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disconnect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
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m_dataConnected = false;
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}
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}
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m_elapsedTimer.start();
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m_running = true;
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}
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void RemoteInputUDPHandler::stop()
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{
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qDebug("RemoteInputUDPHandler::stop");
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if (!m_running) {
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return;
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}
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disconnectTimer();
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if (m_dataConnected)
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{
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m_dataConnected = false;
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disconnect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
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}
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if (m_dataSocket)
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{
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delete m_dataSocket;
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m_dataSocket = 0;
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}
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m_centerFrequency = 0;
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m_samplerate = 0;
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m_running = false;
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}
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void RemoteInputUDPHandler::configureUDPLink(const QString& address, quint16 port)
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{
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qDebug("RemoteInputUDPHandler::configureUDPLink: %s:%d", address.toStdString().c_str(), port);
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bool addressOK = m_dataAddress.setAddress(address);
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if (!addressOK)
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{
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qWarning("RemoteInputUDPHandler::configureUDPLink: invalid address %s. Set to localhost.", address.toStdString().c_str());
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m_dataAddress = QHostAddress::LocalHost;
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}
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m_dataPort = port;
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stop();
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start();
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}
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void RemoteInputUDPHandler::dataReadyRead()
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{
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m_udpReadBytes = 0;
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while (m_dataSocket->hasPendingDatagrams() && m_dataConnected)
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{
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qint64 pendingDataSize = m_dataSocket->pendingDatagramSize();
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m_udpReadBytes += m_dataSocket->readDatagram(&m_udpBuf[m_udpReadBytes], pendingDataSize, &m_remoteAddress, 0);
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if (m_udpReadBytes == RemoteUdpSize) {
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processData();
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m_udpReadBytes = 0;
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}
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}
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}
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void RemoteInputUDPHandler::processData()
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{
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m_remoteInputBuffer.writeData(m_udpBuf);
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const RemoteMetaDataFEC& metaData = m_remoteInputBuffer.getCurrentMeta();
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bool change = false;
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m_tv_msec = m_remoteInputBuffer.getTVOutMSec();
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if (m_centerFrequency != metaData.m_centerFrequency)
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{
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m_centerFrequency = metaData.m_centerFrequency;
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change = true;
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}
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if (m_samplerate != metaData.m_sampleRate)
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{
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disconnectTimer();
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adjustNbDecoderSlots(metaData);
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if (m_messageQueueToInput)
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{
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MsgReportSampleRateChange *msg = MsgReportSampleRateChange::create(metaData.m_sampleRate);
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m_messageQueueToInput->push(msg);
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}
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m_samplerate = metaData.m_sampleRate;
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change = true;
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}
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if (change && (m_samplerate != 0))
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{
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qDebug("RemoteInputUDPHandler::processData: m_samplerate: %u S/s m_centerFrequency: %lu Hz", m_samplerate, m_centerFrequency);
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DSPSignalNotification *notif = new DSPSignalNotification(m_samplerate, m_centerFrequency); // Frequency in Hz for the DSP engine
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m_deviceAPI->getDeviceEngineInputMessageQueue()->push(notif);
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if (m_messageQueueToGUI)
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{
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RemoteInput::MsgReportRemoteInputStreamData *report = RemoteInput::MsgReportRemoteInputStreamData::create(
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m_samplerate,
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m_centerFrequency, // Frequency in Hz for the GUI
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m_tv_msec);
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m_messageQueueToGUI->push(report);
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}
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connectTimer();
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}
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}
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void RemoteInputUDPHandler::adjustNbDecoderSlots(const RemoteMetaDataFEC& metaData)
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{
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int sampleRate = metaData.m_sampleRate;
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int sampleBytes = metaData.m_sampleBytes;
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int bufferFrameSize = RemoteInputBuffer::getBufferFrameSize();
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float fNbDecoderSlots = (float) (4 * sampleBytes * sampleRate) / (float) bufferFrameSize;
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int rawNbDecoderSlots = ((((int) ceil(fNbDecoderSlots)) / 2) * 2) + 2; // next multiple of 2
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qDebug("RemoteInputUDPHandler::adjustNbDecoderSlots: rawNbDecoderSlots: %d", rawNbDecoderSlots);
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m_remoteInputBuffer.setNbDecoderSlots(rawNbDecoderSlots < 4 ? 4 : rawNbDecoderSlots);
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m_remoteInputBuffer.setBufferLenSec(metaData);
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}
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void RemoteInputUDPHandler::connectTimer()
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{
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if (!m_masterTimerConnected)
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{
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qDebug() << "RemoteInputUDPHandler::connectTimer";
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#ifdef USE_INTERNAL_TIMER
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#warning "Uses internal timer"
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connect(m_timer, SIGNAL(timeout()), this, SLOT(tick()));
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#else
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connect(&m_masterTimer, SIGNAL(timeout()), this, SLOT(tick()));
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#endif
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m_masterTimerConnected = true;
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}
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}
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void RemoteInputUDPHandler::disconnectTimer()
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{
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if (m_masterTimerConnected)
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{
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qDebug() << "RemoteInputUDPHandler::disconnectTimer";
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#ifdef USE_INTERNAL_TIMER
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#warning "Uses internal timer"
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disconnect(m_timer, SIGNAL(timeout()), this, SLOT(tick()));
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#else
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disconnect(&m_masterTimer, SIGNAL(timeout()), this, SLOT(tick()));
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#endif
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m_masterTimerConnected = false;
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}
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}
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void RemoteInputUDPHandler::tick()
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{
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// auto throttling
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int throttlems = m_elapsedTimer.restart();
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if (throttlems != m_throttlems)
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{
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m_throttlems = throttlems;
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m_readLengthSamples = (m_remoteInputBuffer.getCurrentMeta().m_sampleRate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
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m_throttleToggle = !m_throttleToggle;
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}
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if (m_autoCorrBuffer)
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{
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m_readLengthSamples += m_remoteInputBuffer.getRWBalanceCorrection();
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// Eliminate negative or excessively high values
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m_readLengthSamples = m_readLengthSamples < 0 ?
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0 : m_readLengthSamples > (int) m_remoteInputBuffer.getCurrentMeta().m_sampleRate/5 ?
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m_remoteInputBuffer.getCurrentMeta().m_sampleRate/5 : m_readLengthSamples;
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}
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const RemoteMetaDataFEC& metaData = m_remoteInputBuffer.getCurrentMeta();
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m_readLength = m_readLengthSamples * (metaData.m_sampleBytes & 0xF) * 2;
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if ((metaData.m_sampleBits == 16) && (SDR_RX_SAMP_SZ == 24)) // 16 -> 24 bits
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{
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if (m_readLengthSamples > (int) m_converterBufferNbSamples)
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{
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if (m_converterBuffer) { delete[] m_converterBuffer; }
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m_converterBuffer = new int32_t[m_readLengthSamples*2];
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}
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uint8_t *buf = m_remoteInputBuffer.readData(m_readLength);
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for (int is = 0; is < m_readLengthSamples; is++)
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{
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m_converterBuffer[2*is] = ((int16_t*)buf)[2*is]; // I
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m_converterBuffer[2*is]<<=8;
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m_converterBuffer[2*is+1] = ((int16_t*)buf)[2*is+1]; // Q
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m_converterBuffer[2*is+1]<<=8;
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}
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m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
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}
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else if ((metaData.m_sampleBits == 24) && (SDR_RX_SAMP_SZ == 16)) // 24 -> 16 bits
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{
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if (m_readLengthSamples > (int) m_converterBufferNbSamples)
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{
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if (m_converterBuffer) { delete[] m_converterBuffer; }
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m_converterBuffer = new int32_t[m_readLengthSamples];
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}
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uint8_t *buf = m_remoteInputBuffer.readData(m_readLength);
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for (int is = 0; is < m_readLengthSamples; is++)
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{
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m_converterBuffer[is] = ((int32_t *)buf)[2*is+1]>>8; // Q -> MSB
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m_converterBuffer[is] <<=16;
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m_converterBuffer[is] += ((int32_t *)buf)[2*is]>>8; // I -> LSB
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}
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m_sampleFifo->write(reinterpret_cast<quint8*>(m_converterBuffer), m_readLengthSamples*sizeof(Sample));
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}
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else if ((metaData.m_sampleBits == 16) || (metaData.m_sampleBits == 24)) // same sample size and valid size
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{
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// read samples directly feeding the SampleFifo (no callback)
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m_sampleFifo->write(reinterpret_cast<quint8*>(m_remoteInputBuffer.readData(m_readLength)), m_readLength);
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m_samplesCount += m_readLengthSamples;
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}
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else // invalid size
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{
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qWarning("RemoteInputUDPHandler::tick: unexpected sample size in stream: %d bits", (int) metaData.m_sampleBits);
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}
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if (m_tickCount < m_rateDivider)
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{
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m_tickCount++;
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}
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else
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{
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m_tickCount = 0;
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if (m_messageQueueToGUI)
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{
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int framesDecodingStatus;
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int minNbBlocks = m_remoteInputBuffer.getMinNbBlocks();
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int minNbOriginalBlocks = m_remoteInputBuffer.getMinOriginalBlocks();
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int nbOriginalBlocks = m_remoteInputBuffer.getCurrentMeta().m_nbOriginalBlocks;
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int nbFECblocks = m_remoteInputBuffer.getCurrentMeta().m_nbFECBlocks;
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int sampleBits = m_remoteInputBuffer.getCurrentMeta().m_sampleBits;
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int sampleBytes = m_remoteInputBuffer.getCurrentMeta().m_sampleBytes;
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//framesDecodingStatus = (minNbOriginalBlocks == nbOriginalBlocks ? 2 : (minNbOriginalBlocks < nbOriginalBlocks - nbFECblocks ? 0 : 1));
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if (minNbBlocks < nbOriginalBlocks) {
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framesDecodingStatus = 0;
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} else if (minNbBlocks < nbOriginalBlocks + nbFECblocks) {
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framesDecodingStatus = 1;
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} else {
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framesDecodingStatus = 2;
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}
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RemoteInput::MsgReportRemoteInputStreamTiming *report = RemoteInput::MsgReportRemoteInputStreamTiming::create(
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m_tv_msec,
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m_remoteInputBuffer.getBufferLengthInSecs(),
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m_remoteInputBuffer.getBufferGauge(),
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framesDecodingStatus,
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minNbBlocks == nbOriginalBlocks + nbFECblocks,
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minNbBlocks,
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minNbOriginalBlocks,
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m_remoteInputBuffer.getMaxNbRecovery(),
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m_remoteInputBuffer.getAvgNbBlocks(),
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m_remoteInputBuffer.getAvgOriginalBlocks(),
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m_remoteInputBuffer.getAvgNbRecovery(),
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nbOriginalBlocks,
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nbFECblocks,
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sampleBits,
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sampleBytes);
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m_messageQueueToGUI->push(report);
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}
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}
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}
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