From 8d15cabe706a9d26948e59173d115b28c094f7ad Mon Sep 17 00:00:00 2001 From: f4exb Date: Tue, 12 May 2015 02:53:35 +0200 Subject: [PATCH] Added AM demodulator plugin --- Readme.md | 4 +- plugins/channel/CMakeLists.txt | 1 + plugins/channel/am/CMakeLists.txt | 47 ++++++ plugins/channel/am/amdemod.cpp | 244 +++++++++++++++++++++++++++ plugins/channel/am/amdemod.h | 131 +++++++++++++++ plugins/channel/am/amdemodgui.cpp | 236 ++++++++++++++++++++++++++ plugins/channel/am/amdemodgui.h | 69 ++++++++ plugins/channel/am/amdemodgui.ui | 270 ++++++++++++++++++++++++++++++ plugins/channel/am/amplugin.cpp | 54 ++++++ plugins/channel/am/amplugin.h | 29 ++++ 10 files changed, 1082 insertions(+), 3 deletions(-) create mode 100644 plugins/channel/am/CMakeLists.txt create mode 100644 plugins/channel/am/amdemod.cpp create mode 100644 plugins/channel/am/amdemod.h create mode 100644 plugins/channel/am/amdemodgui.cpp create mode 100644 plugins/channel/am/amdemodgui.h create mode 100644 plugins/channel/am/amdemodgui.ui create mode 100644 plugins/channel/am/amplugin.cpp create mode 100644 plugins/channel/am/amplugin.h diff --git a/Readme.md b/Readme.md index b63502d84..f63c97d9a 100644 --- a/Readme.md +++ b/Readme.md @@ -77,14 +77,12 @@ Done since the fork - Make the sidebands appear correctly on SSB channel overlay. Limit to +/- 6 kHz to fit channel spectrum analyzer window - SSB bandwidth can now be tuned in steps of 100 Hz - NFM and SSB receiver in focus trigger the display of the central frequency line on the spectrum frequency scale thus facilitating its identification - + - Added AM demod so now you can listen to air traffic! ===== To Do ===== - - - AM demod. What about the air band?! - Add the possibility to change the brightness and/or color of the grid. Sometimes it is barely visible yet useful - Possibility to completely undock the receiver in a separate window. Useful when there are many receivers - Larger decimation capability for narrowband and very narrowband work (32, 64, ...) diff --git a/plugins/channel/CMakeLists.txt b/plugins/channel/CMakeLists.txt index a57fa036d..1700e8b72 100644 --- a/plugins/channel/CMakeLists.txt +++ b/plugins/channel/CMakeLists.txt @@ -1,6 +1,7 @@ project(demod) add_subdirectory(lora) +add_subdirectory(am) add_subdirectory(nfm) add_subdirectory(ssb) add_subdirectory(tcpsrc) diff --git a/plugins/channel/am/CMakeLists.txt b/plugins/channel/am/CMakeLists.txt new file mode 100644 index 000000000..77bbbdfd5 --- /dev/null +++ b/plugins/channel/am/CMakeLists.txt @@ -0,0 +1,47 @@ +project(am) + +set(am_SOURCES + amdemod.cpp + amdemodgui.cpp + amplugin.cpp +) + +set(am_HEADERS + amdemod.h + amdemodgui.h + amplugin.h +) + +set(am_FORMS + amdemodgui.ui +) + +include_directories( + . + ${CMAKE_CURRENT_BINARY_DIR} + ${CMAKE_SOURCE_DIR}/include + ${CMAKE_SOURCE_DIR}/include-gpl + ${OPENGL_INCLUDE_DIR} +) + +#include(${QT_USE_FILE}) +add_definitions(${QT_DEFINITIONS}) +add_definitions(-DQT_PLUGIN) +add_definitions(-DQT_SHARED) + +#qt5_wrap_cpp(nfm_HEADERS_MOC ${nfm_HEADERS}) +qt5_wrap_ui(am_FORMS_HEADERS ${am_FORMS}) + +add_library(demodam SHARED + ${am_SOURCES} + ${am_HEADERS_MOC} + ${am_FORMS_HEADERS} +) + +target_link_libraries(demodam + ${QT_LIBRARIES} + ${OPENGL_LIBRARIES} + sdrbase +) + +qt5_use_modules(demodam Core Widgets OpenGL Multimedia) \ No newline at end of file diff --git a/plugins/channel/am/amdemod.cpp b/plugins/channel/am/amdemod.cpp new file mode 100644 index 000000000..edaaaa0cd --- /dev/null +++ b/plugins/channel/am/amdemod.cpp @@ -0,0 +1,244 @@ +/////////////////////////////////////////////////////////////////////////////////// +// Copyright (C) 2015 Edouard Griffiths, F4EXB. // +// // +// This program is free software; you can redistribute it and/or modify // +// it under the terms of the GNU General Public License as published by // +// the Free Software Foundation as version 3 of the License, or // +// // +// This program is distributed in the hope that it will be useful, // +// but WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // +// GNU General Public License V3 for more details. // +// // +// You should have received a copy of the GNU General Public License // +// along with this program. If not, see . // +/////////////////////////////////////////////////////////////////////////////////// + +#include "amdemod.h" + +#include +#include +#include +#include "audio/audiooutput.h" +#include "dsp/dspcommands.h" +#include "dsp/pidcontroller.h" + +MESSAGE_CLASS_DEFINITION(AMDemod::MsgConfigureAMDemod, Message) + +AMDemod::AMDemod(AudioFifo* audioFifo, SampleSink* sampleSink) : + m_sampleSink(sampleSink), + m_audioFifo(audioFifo) +{ + m_config.m_inputSampleRate = 96000; + m_config.m_inputFrequencyOffset = 0; + m_config.m_rfBandwidth = 12500; + m_config.m_afBandwidth = 3000; + m_config.m_squelch = -40.0; + m_config.m_volume = 2.0; + m_config.m_audioSampleRate = 48000; + + apply(); + + m_audioBuffer.resize(16384); + m_audioBufferFill = 0; + + m_movingAverage.resize(16, 0); +} + +AMDemod::~AMDemod() +{ +} + +void AMDemod::configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch) +{ + Message* cmd = MsgConfigureAMDemod::create(rfBandwidth, afBandwidth, volume, squelch); + cmd->submit(messageQueue, this); +} + +float arctan2(Real y, Real x) +{ + Real coeff_1 = M_PI / 4; + Real coeff_2 = 3 * coeff_1; + Real abs_y = fabs(y) + 1e-10; // kludge to prevent 0/0 condition + Real angle; + if( x>= 0) { + Real r = (x - abs_y) / (x + abs_y); + angle = coeff_1 - coeff_1 * r; + } else { + Real r = (x + abs_y) / (abs_y - x); + angle = coeff_2 - coeff_1 * r; + } + if(y < 0) + return(-angle); + else return(angle); +} + +Real angleDist(Real a, Real b) +{ + Real dist = b - a; + + while(dist <= M_PI) + dist += 2 * M_PI; + while(dist >= M_PI) + dist -= 2 * M_PI; + + return dist; +} + +void AMDemod::feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool firstOfBurst) +{ + Complex ci; + + if(m_audioFifo->size() <= 0) + return; + + for(SampleVector::const_iterator it = begin; it != end; ++it) { + Complex c(it->real() / 32768.0, it->imag() / 32768.0); + c *= m_nco.nextIQ(); + + { + if(m_interpolator.interpolate(&m_interpolatorDistanceRemain, c, &ci)) { + m_sampleBuffer.push_back(Sample(ci.real() * 32767.0, ci.imag() * 32767.0)); + + Real magsq = ci.real() * ci.real() + ci.imag() * ci.imag(); + m_movingAverage.feed(magsq); + if(m_movingAverage.average() >= m_squelchLevel) + m_squelchState = m_running.m_audioSampleRate/ 20; + + qint16 sample; + if(m_squelchState > 0) { + m_squelchState--; + /* + Real argument = arg(ci); + Real demod = argument - m_lastArgument; + m_lastArgument = argument; + */ + + /* NFM demod: + Complex d = conj(m_lastSample) * ci; + m_lastSample = ci; + Real demod = atan2(d.imag(), d.real()); + //Real demod = arctan2(d.imag(), d.real()); + */ + +/* + Real argument1 = arg(ci);//atan2(ci.imag(), ci.real()); + Real argument2 = m_lastSample.real(); + Real demod = angleDist(argument2, argument1); + m_lastSample = Complex(argument1, 0); +*/ + Real demod = sqrt(magsq); + + //demod /= M_PI; + + demod = m_lowpass.filter(demod); + + if(demod < -1) + demod = -1; + else if(demod > 1) + demod = 1; + + demod *= m_running.m_volume; + sample = demod * 32700; + + } else { + sample = 0; + } + + m_audioBuffer[m_audioBufferFill].l = sample; + m_audioBuffer[m_audioBufferFill].r = sample; + ++m_audioBufferFill; + if(m_audioBufferFill >= m_audioBuffer.size()) { + uint res = m_audioFifo->write((const quint8*)&m_audioBuffer[0], m_audioBufferFill, 1); + if(res != m_audioBufferFill) + qDebug("lost %u audio samples", m_audioBufferFill - res); + m_audioBufferFill = 0; + } + + m_interpolatorDistanceRemain += m_interpolatorDistance; + } + } + } + if(m_audioBufferFill > 0) { + uint res = m_audioFifo->write((const quint8*)&m_audioBuffer[0], m_audioBufferFill, 1); + if(res != m_audioBufferFill) + qDebug("lost %u samples", m_audioBufferFill - res); + m_audioBufferFill = 0; + } + + if(m_sampleSink != NULL) + m_sampleSink->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), false); + m_sampleBuffer.clear(); +} + +void AMDemod::start() +{ + m_squelchState = 0; + m_audioFifo->clear(); + m_interpolatorRegulation = 0.9999; + m_interpolatorDistance = 1.0; + m_interpolatorDistanceRemain = 0.0; + m_lastSample = 0; +} + +void AMDemod::stop() +{ +} + +bool AMDemod::handleMessage(Message* cmd) +{ + if(DSPSignalNotification::match(cmd)) { + DSPSignalNotification* signal = (DSPSignalNotification*)cmd; + + m_config.m_inputSampleRate = signal->getSampleRate(); + m_config.m_inputFrequencyOffset = signal->getFrequencyOffset(); + apply(); + cmd->completed(); + return true; + } else if(MsgConfigureAMDemod::match(cmd)) { + MsgConfigureAMDemod* cfg = (MsgConfigureAMDemod*)cmd; + m_config.m_rfBandwidth = cfg->getRFBandwidth(); + m_config.m_afBandwidth = cfg->getAFBandwidth(); + m_config.m_volume = cfg->getVolume(); + m_config.m_squelch = cfg->getSquelch(); + apply(); + return true; + } else { + if(m_sampleSink != NULL) + return m_sampleSink->handleMessage(cmd); + else return false; + } +} + +void AMDemod::apply() +{ + + if((m_config.m_inputFrequencyOffset != m_running.m_inputFrequencyOffset) || + (m_config.m_inputSampleRate != m_running.m_inputSampleRate)) { + m_nco.setFreq(-m_config.m_inputFrequencyOffset, m_config.m_inputSampleRate); + } + + if((m_config.m_inputSampleRate != m_running.m_inputSampleRate) || + (m_config.m_rfBandwidth != m_running.m_rfBandwidth)) { + m_interpolator.create(16, m_config.m_inputSampleRate, m_config.m_rfBandwidth / 2.2); + m_interpolatorDistanceRemain = 0; + m_interpolatorDistance = m_config.m_inputSampleRate / m_config.m_audioSampleRate; + } + + if((m_config.m_afBandwidth != m_running.m_afBandwidth) || + (m_config.m_audioSampleRate != m_running.m_audioSampleRate)) { + m_lowpass.create(21, m_config.m_audioSampleRate, m_config.m_afBandwidth); + } + + if(m_config.m_squelch != m_running.m_squelch) { + m_squelchLevel = pow(10.0, m_config.m_squelch / 20.0); + m_squelchLevel *= m_squelchLevel; + } + + m_running.m_inputSampleRate = m_config.m_inputSampleRate; + m_running.m_inputFrequencyOffset = m_config.m_inputFrequencyOffset; + m_running.m_rfBandwidth = m_config.m_rfBandwidth; + m_running.m_squelch = m_config.m_squelch; + m_running.m_volume = m_config.m_volume; + m_running.m_audioSampleRate = m_config.m_audioSampleRate; +} diff --git a/plugins/channel/am/amdemod.h b/plugins/channel/am/amdemod.h new file mode 100644 index 000000000..2557970e4 --- /dev/null +++ b/plugins/channel/am/amdemod.h @@ -0,0 +1,131 @@ +/////////////////////////////////////////////////////////////////////////////////// +// Copyright (C) 2015 Edouard Griffiths, F4EXB. // +// // +// This program is free software; you can redistribute it and/or modify // +// it under the terms of the GNU General Public License as published by // +// the Free Software Foundation as version 3 of the License, or // +// // +// This program is distributed in the hope that it will be useful, // +// but WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // +// GNU General Public License V3 for more details. // +// // +// You should have received a copy of the GNU General Public License // +// along with this program. If not, see . // +/////////////////////////////////////////////////////////////////////////////////// + +#ifndef INCLUDE_AMDEMOD_H +#define INCLUDE_AMDEMOD_H + +#include +#include "dsp/samplesink.h" +#include "dsp/nco.h" +#include "dsp/interpolator.h" +#include "dsp/lowpass.h" +#include "dsp/movingaverage.h" +#include "audio/audiofifo.h" +#include "util/message.h" + +class AudioFifo; + +class AMDemod : public SampleSink { +public: + AMDemod(AudioFifo* audioFifo, SampleSink* sampleSink); + ~AMDemod(); + + void configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch); + + void feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool po); + void start(); + void stop(); + bool handleMessage(Message* cmd); + +private: + class MsgConfigureAMDemod : public Message { + MESSAGE_CLASS_DECLARATION + + public: + Real getRFBandwidth() const { return m_rfBandwidth; } + Real getAFBandwidth() const { return m_afBandwidth; } + Real getVolume() const { return m_volume; } + Real getSquelch() const { return m_squelch; } + + static MsgConfigureAMDemod* create(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch) + { + return new MsgConfigureAMDemod(rfBandwidth, afBandwidth, volume, squelch); + } + + private: + Real m_rfBandwidth; + Real m_afBandwidth; + Real m_volume; + Real m_squelch; + + MsgConfigureAMDemod(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch) : + Message(), + m_rfBandwidth(rfBandwidth), + m_afBandwidth(afBandwidth), + m_volume(volume), + m_squelch(squelch) + { } + }; + + struct AudioSample { + qint16 l; + qint16 r; + }; + typedef std::vector AudioVector; + + enum RateState { + RSInitialFill, + RSRunning + }; + + struct Config { + int m_inputSampleRate; + qint64 m_inputFrequencyOffset; + Real m_rfBandwidth; + Real m_afBandwidth; + Real m_squelch; + Real m_volume; + quint32 m_audioSampleRate; + + Config() : + m_inputSampleRate(-1), + m_inputFrequencyOffset(0), + m_rfBandwidth(-1), + m_afBandwidth(-1), + m_squelch(0), + m_volume(0), + m_audioSampleRate(0) + { } + }; + + Config m_config; + Config m_running; + + NCO m_nco; + Real m_interpolatorRegulation; + Interpolator m_interpolator; + Real m_interpolatorDistance; + Real m_interpolatorDistanceRemain; + Lowpass m_lowpass; + + Real m_squelchLevel; + int m_squelchState; + + Real m_lastArgument; + Complex m_lastSample; + MovingAverage m_movingAverage; + + AudioVector m_audioBuffer; + uint m_audioBufferFill; + + SampleSink* m_sampleSink; + AudioFifo* m_audioFifo; + SampleVector m_sampleBuffer; + + void apply(); +}; + +#endif // INCLUDE_AMDEMOD_H diff --git a/plugins/channel/am/amdemodgui.cpp b/plugins/channel/am/amdemodgui.cpp new file mode 100644 index 000000000..6c4460bda --- /dev/null +++ b/plugins/channel/am/amdemodgui.cpp @@ -0,0 +1,236 @@ +#include "amdemodgui.h" + +#include +#include +#include "ui_amdemodgui.h" +#include "dsp/threadedsamplesink.h" +#include "dsp/channelizer.h" +#include "dsp/nullsink.h" +#include "gui/glspectrum.h" +#include "plugin/pluginapi.h" +#include "util/simpleserializer.h" +#include "gui/basicchannelsettingswidget.h" + +#include +#include "amdemod.h" + +const int AMDemodGUI::m_rfBW[] = { + 5000, 6250, 8330, 10000, 12500, 15000, 20000, 25000, 40000 +}; + +AMDemodGUI* AMDemodGUI::create(PluginAPI* pluginAPI) +{ + AMDemodGUI* gui = new AMDemodGUI(pluginAPI); + return gui; +} + +void AMDemodGUI::destroy() +{ + delete this; +} + +void AMDemodGUI::setName(const QString& name) +{ + setObjectName(name); +} + +void AMDemodGUI::resetToDefaults() +{ + ui->rfBW->setValue(4); + ui->afBW->setValue(3); + ui->volume->setValue(20); + ui->squelch->setValue(-40); + ui->deltaFrequency->setValue(0); + applySettings(); +} + +QByteArray AMDemodGUI::serialize() const +{ + SimpleSerializer s(1); + s.writeS32(1, m_channelMarker->getCenterFrequency()); + s.writeS32(2, ui->rfBW->value()); + s.writeS32(3, ui->afBW->value()); + s.writeS32(4, ui->volume->value()); + s.writeS32(5, ui->squelch->value()); + //s.writeBlob(6, ui->spectrumGUI->serialize()); + s.writeU32(7, m_channelMarker->getColor().rgb()); + return s.final(); +} + +bool AMDemodGUI::deserialize(const QByteArray& data) +{ + SimpleDeserializer d(data); + + if(!d.isValid()) { + resetToDefaults(); + return false; + } + + if(d.getVersion() == 1) { + QByteArray bytetmp; + quint32 u32tmp; + qint32 tmp; + d.readS32(1, &tmp, 0); + m_channelMarker->setCenterFrequency(tmp); + d.readS32(2, &tmp, 4); + ui->rfBW->setValue(tmp); + d.readS32(3, &tmp, 3); + ui->afBW->setValue(tmp); + d.readS32(4, &tmp, 20); + ui->volume->setValue(tmp); + d.readS32(5, &tmp, -40); + ui->squelch->setValue(tmp); + //d.readBlob(6, &bytetmp); + //ui->spectrumGUI->deserialize(bytetmp); + if(d.readU32(7, &u32tmp)) + m_channelMarker->setColor(u32tmp); + applySettings(); + return true; + } else { + resetToDefaults(); + return false; + } +} + +bool AMDemodGUI::handleMessage(Message* message) +{ + return false; +} + +void AMDemodGUI::viewChanged() +{ + applySettings(); +} + +void AMDemodGUI::on_deltaMinus_clicked(bool minus) +{ + int deltaFrequency = m_channelMarker->getCenterFrequency(); + bool minusDelta = (deltaFrequency < 0); + + if (minus ^ minusDelta) // sign change + { + m_channelMarker->setCenterFrequency(-deltaFrequency); + } +} + +void AMDemodGUI::on_deltaFrequency_changed(quint64 value) +{ + if (ui->deltaMinus->isChecked()) { + m_channelMarker->setCenterFrequency(-value); + } else { + m_channelMarker->setCenterFrequency(value); + } +} + +void AMDemodGUI::on_rfBW_valueChanged(int value) +{ + ui->rfBWText->setText(QString("%1 kHz").arg(m_rfBW[value] / 1000.0)); + m_channelMarker->setBandwidth(m_rfBW[value]); + applySettings(); +} + +void AMDemodGUI::on_afBW_valueChanged(int value) +{ + ui->afBWText->setText(QString("%1 kHz").arg(value)); + applySettings(); +} + +void AMDemodGUI::on_volume_valueChanged(int value) +{ + ui->volumeText->setText(QString("%1").arg(value / 10.0, 0, 'f', 1)); + applySettings(); +} + +void AMDemodGUI::on_squelch_valueChanged(int value) +{ + ui->squelchText->setText(QString("%1 dB").arg(value)); + applySettings(); +} + + +void AMDemodGUI::onWidgetRolled(QWidget* widget, bool rollDown) +{ + /* + if((widget == ui->spectrumContainer) && (m_nfmDemod != NULL)) + m_nfmDemod->setSpectrum(m_threadedSampleSink->getMessageQueue(), rollDown); + */ +} + +void AMDemodGUI::onMenuDoubleClicked() +{ + if(!m_basicSettingsShown) { + m_basicSettingsShown = true; + BasicChannelSettingsWidget* bcsw = new BasicChannelSettingsWidget(m_channelMarker, this); + bcsw->show(); + } +} + +AMDemodGUI::AMDemodGUI(PluginAPI* pluginAPI, QWidget* parent) : + RollupWidget(parent), + ui(new Ui::AMDemodGUI), + m_pluginAPI(pluginAPI), + m_basicSettingsShown(false) +{ + ui->setupUi(this); + setAttribute(Qt::WA_DeleteOnClose, true); + connect(this, SIGNAL(widgetRolled(QWidget*,bool)), this, SLOT(onWidgetRolled(QWidget*,bool))); + connect(this, SIGNAL(menuDoubleClickEvent()), this, SLOT(onMenuDoubleClicked())); + + m_audioFifo = new AudioFifo(4, 48000); + m_nullSink = new NullSink(); + m_amDemod = new AMDemod(m_audioFifo, m_nullSink); + m_channelizer = new Channelizer(m_amDemod); + m_threadedSampleSink = new ThreadedSampleSink(m_channelizer); + m_pluginAPI->addAudioSource(m_audioFifo); + m_pluginAPI->addSampleSink(m_threadedSampleSink); + + m_channelMarker = new ChannelMarker(this); + m_channelMarker->setColor(Qt::yellow); + m_channelMarker->setBandwidth(12500); + m_channelMarker->setCenterFrequency(0); + m_channelMarker->setVisible(true); + connect(m_channelMarker, SIGNAL(changed()), this, SLOT(viewChanged())); + m_pluginAPI->addChannelMarker(m_channelMarker); + + applySettings(); +} + +AMDemodGUI::~AMDemodGUI() +{ + m_pluginAPI->removeChannelInstance(this); + m_pluginAPI->removeAudioSource(m_audioFifo); + m_pluginAPI->removeSampleSink(m_threadedSampleSink); + delete m_threadedSampleSink; + delete m_channelizer; + delete m_amDemod; + delete m_nullSink; + delete m_audioFifo; + delete m_channelMarker; + delete ui; +} + +void AMDemodGUI::applySettings() +{ + setTitleColor(m_channelMarker->getColor()); + m_channelizer->configure(m_threadedSampleSink->getMessageQueue(), + 48000, + m_channelMarker->getCenterFrequency()); + ui->deltaFrequency->setValue(abs(m_channelMarker->getCenterFrequency())); + ui->deltaMinus->setChecked(m_channelMarker->getCenterFrequency() < 0); + m_amDemod->configure(m_threadedSampleSink->getMessageQueue(), + m_rfBW[ui->rfBW->value()], + ui->afBW->value() * 1000.0, + ui->volume->value() / 10.0, + ui->squelch->value()); +} + +void AMDemodGUI::leaveEvent(QEvent*) +{ + m_channelMarker->setHighlighted(false); +} + +void AMDemodGUI::enterEvent(QEvent*) +{ + m_channelMarker->setHighlighted(true); +} + diff --git a/plugins/channel/am/amdemodgui.h b/plugins/channel/am/amdemodgui.h new file mode 100644 index 000000000..0ee51e09b --- /dev/null +++ b/plugins/channel/am/amdemodgui.h @@ -0,0 +1,69 @@ +#ifndef INCLUDE_AMDEMODGUI_H +#define INCLUDE_AMDEMODGUI_H + +#include "gui/rollupwidget.h" +#include "plugin/plugingui.h" + +class PluginAPI; +class ChannelMarker; + +class AudioFifo; +class ThreadedSampleSink; +class Channelizer; +class AMDemod; +class NullSink; + +namespace Ui { + class AMDemodGUI; +} + +class AMDemodGUI : public RollupWidget, public PluginGUI { + Q_OBJECT + +public: + static AMDemodGUI* create(PluginAPI* pluginAPI); + void destroy(); + + void setName(const QString& name); + + void resetToDefaults(); + QByteArray serialize() const; + bool deserialize(const QByteArray& data); + + bool handleMessage(Message* message); + +private slots: + void viewChanged(); + void on_deltaFrequency_changed(quint64 value); + void on_deltaMinus_clicked(bool minus); + void on_rfBW_valueChanged(int value); + void on_afBW_valueChanged(int value); + void on_volume_valueChanged(int value); + void on_squelch_valueChanged(int value); + void onWidgetRolled(QWidget* widget, bool rollDown); + void onMenuDoubleClicked(); + +private: + Ui::AMDemodGUI* ui; + PluginAPI* m_pluginAPI; + ChannelMarker* m_channelMarker; + bool m_basicSettingsShown; + + AudioFifo* m_audioFifo; + ThreadedSampleSink* m_threadedSampleSink; + Channelizer* m_channelizer; + AMDemod* m_amDemod; + NullSink *m_nullSink; + + static const int m_rfBW[]; + + explicit AMDemodGUI(PluginAPI* pluginAPI, QWidget* parent = NULL); + ~AMDemodGUI(); + + void applySettings(); + + void leaveEvent(QEvent*); + void enterEvent(QEvent*); +}; + +#endif // INCLUDE_AMDEMODGUI_H diff --git a/plugins/channel/am/amdemodgui.ui b/plugins/channel/am/amdemodgui.ui new file mode 100644 index 000000000..280576f06 --- /dev/null +++ b/plugins/channel/am/amdemodgui.ui @@ -0,0 +1,270 @@ + + + AMDemodGUI + + + + 0 + 0 + 302 + 138 + + + + Qt::StrongFocus + + + AM Demodulator + + + + + 35 + 35 + 242 + 96 + + + + Settings + + + + 2 + + + 2 + + + 2 + + + 2 + + + 3 + + + + + 100 + + + 20 + + + Qt::Horizontal + + + + + + + 8 + + + 1 + + + 4 + + + Qt::Horizontal + + + + + + + Qt::RightToLeft + + + Minus + + + + + + + Squelch + + + + + + + AF Bandwidth + + + + + + + -100 + + + 0 + + + -40 + + + Qt::Horizontal + + + + + + + + 50 + 0 + + + + 12.5kHz + + + Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter + + + + + + + RF Bandwidth + + + + + + + + 50 + 0 + + + + 3 kHz + + + Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter + + + + + + + 1 + + + 20 + + + 1 + + + 3 + + + Qt::Horizontal + + + + + + + + 50 + 0 + + + + -40dB + + + Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter + + + + + + + Volume + + + + + + + + 50 + 0 + + + + 2.0 + + + Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter + + + + + + + + 0 + 0 + + + + + 32 + 16 + + + + + Monospace + 12 + + + + SizeVerCursor + + + Qt::StrongFocus + + + Demod shift frequency from center in Hz + + + + + + + Hz + + + + + + + + + RollupWidget + QWidget +
gui/rollupwidget.h
+ 1 + + + ValueDial + QWidget +
gui/valuedial.h
+ 1 + + + + + diff --git a/plugins/channel/am/amplugin.cpp b/plugins/channel/am/amplugin.cpp new file mode 100644 index 000000000..fc888a1a9 --- /dev/null +++ b/plugins/channel/am/amplugin.cpp @@ -0,0 +1,54 @@ +#include "amplugin.h" + +#include +#include +#include "plugin/pluginapi.h" +#include "amdemodgui.h" + +const PluginDescriptor AMPlugin::m_pluginDescriptor = { + QString("AM Demodulator"), + QString("---"), + QString("(c) Edouard Griffiths, F4EXB"), + QString("https://github.com/f4exb/rtl-sdrangelove/tree/f4exb"), + true, + QString("https://github.com/f4exb/rtl-sdrangelove/tree/f4exb") +}; + +AMPlugin::AMPlugin(QObject* parent) : + QObject(parent) +{ +} + +const PluginDescriptor& AMPlugin::getPluginDescriptor() const +{ + return m_pluginDescriptor; +} + +void AMPlugin::initPlugin(PluginAPI* pluginAPI) +{ + m_pluginAPI = pluginAPI; + + // register AM demodulator + QAction* action = new QAction(tr("&AM Demodulator"), this); + connect(action, SIGNAL(triggered()), this, SLOT(createInstanceAM())); + m_pluginAPI->registerChannel("de.maintech.sdrangelove.channel.am", this, action); +} + +PluginGUI* AMPlugin::createChannel(const QString& channelName) +{ + if(channelName == "de.maintech.sdrangelove.channel.am") { + AMDemodGUI* gui = AMDemodGUI::create(m_pluginAPI); + m_pluginAPI->registerChannelInstance("de.maintech.sdrangelove.channel.am", gui); + m_pluginAPI->addChannelRollup(gui); + return gui; + } else { + return NULL; + } +} + +void AMPlugin::createInstanceAM() +{ + AMDemodGUI* gui = AMDemodGUI::create(m_pluginAPI); + m_pluginAPI->registerChannelInstance("de.maintech.sdrangelove.channel.am", gui); + m_pluginAPI->addChannelRollup(gui); +} diff --git a/plugins/channel/am/amplugin.h b/plugins/channel/am/amplugin.h new file mode 100644 index 000000000..3c974f310 --- /dev/null +++ b/plugins/channel/am/amplugin.h @@ -0,0 +1,29 @@ +#ifndef INCLUDE_AMPLUGIN_H +#define INCLUDE_AMPLUGIN_H + +#include +#include "plugin/plugininterface.h" + +class AMPlugin : public QObject, PluginInterface { + Q_OBJECT + Q_INTERFACES(PluginInterface) + Q_PLUGIN_METADATA(IID "de.maintech.sdrangelove.channel.am") + +public: + explicit AMPlugin(QObject* parent = NULL); + + const PluginDescriptor& getPluginDescriptor() const; + void initPlugin(PluginAPI* pluginAPI); + + PluginGUI* createChannel(const QString& channelName); + +private: + static const PluginDescriptor m_pluginDescriptor; + + PluginAPI* m_pluginAPI; + +private slots: + void createInstanceAM(); +}; + +#endif // INCLUDE_AMPLUGIN_H