mirror of
https://github.com/f4exb/sdrangel.git
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168 lines
5.3 KiB
C++
168 lines
5.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 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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#ifndef INCLUDE_CHANALYZER_H
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#define INCLUDE_CHANALYZER_H
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#include <QMutex>
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#include <vector>
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#include "dsp/basebandsamplesink.h"
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#include "channel/channelsinkapi.h"
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#include "dsp/ncof.h"
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#include "dsp/fftfilt.h"
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#include "audio/audiofifo.h"
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#include "util/message.h"
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#define ssbFftLen 1024
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class DeviceSourceAPI;
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class ThreadedBasebandSampleSink;
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class DownChannelizer;
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class ChannelAnalyzer : public BasebandSampleSink, public ChannelSinkAPI {
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public:
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class MsgConfigureChannelAnalyzer : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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Real getBandwidth() const { return m_Bandwidth; }
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Real getLoCutoff() const { return m_LowCutoff; }
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int getSpanLog2() const { return m_spanLog2; }
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bool getSSB() const { return m_ssb; }
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static MsgConfigureChannelAnalyzer* create(Real Bandwidth,
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Real LowCutoff,
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int spanLog2,
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bool ssb)
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{
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return new MsgConfigureChannelAnalyzer(Bandwidth, LowCutoff, spanLog2, ssb);
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}
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private:
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Real m_Bandwidth;
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Real m_LowCutoff;
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int m_spanLog2;
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bool m_ssb;
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MsgConfigureChannelAnalyzer(Real Bandwidth,
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Real LowCutoff,
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int spanLog2,
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bool ssb) :
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Message(),
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m_Bandwidth(Bandwidth),
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m_LowCutoff(LowCutoff),
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m_spanLog2(spanLog2),
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m_ssb(ssb)
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{ }
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};
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class MsgConfigureChannelizer : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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int getCenterFrequency() const { return m_centerFrequency; }
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static MsgConfigureChannelizer* create(int centerFrequency)
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{
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return new MsgConfigureChannelizer(centerFrequency);
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}
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private:
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int m_centerFrequency;
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MsgConfigureChannelizer(int centerFrequency) :
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Message(),
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m_centerFrequency(centerFrequency)
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{ }
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};
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class MsgReportChannelSampleRateChanged : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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static MsgReportChannelSampleRateChanged* create()
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{
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return new MsgReportChannelSampleRateChanged();
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}
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private:
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MsgReportChannelSampleRateChanged() :
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Message()
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{ }
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};
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ChannelAnalyzer(DeviceSourceAPI *deviceAPI);
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virtual ~ChannelAnalyzer();
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virtual void destroy() { delete this; }
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void setSampleSink(BasebandSampleSink* sampleSink) { m_sampleSink = sampleSink; }
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void configure(MessageQueue* messageQueue,
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Real Bandwidth,
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Real LowCutoff,
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int spanLog2,
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bool ssb);
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int getSampleRate() const { return m_sampleRate; }
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Real getMagSq() const { return m_magsq; }
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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virtual void stop();
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virtual bool handleMessage(const Message& cmd);
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virtual void getIdentifier(QString& id) { id = objectName(); }
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virtual void getTitle(QString& title) { title = objectName(); }
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virtual qint64 getCenterFrequency() const { return m_frequency; }
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virtual QByteArray serialize() const { return QByteArray(); }
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virtual bool deserialize(const QByteArray& data __attribute__((unused))) { return false; }
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static const QString m_channelIdURI;
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static const QString m_channelId;
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private slots:
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void channelSampleRateChanged();
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private:
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DeviceSourceAPI *m_deviceAPI;
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ThreadedBasebandSampleSink* m_threadedChannelizer;
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DownChannelizer* m_channelizer;
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Real m_Bandwidth;
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Real m_LowCutoff;
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int m_spanLog2;
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int m_undersampleCount;
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fftfilt::cmplx m_sum;
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int m_sampleRate;
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int m_frequency;
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bool m_usb;
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bool m_ssb;
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Real m_magsq;
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NCOF m_nco;
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fftfilt* SSBFilter;
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fftfilt* DSBFilter;
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BasebandSampleSink* m_sampleSink;
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SampleVector m_sampleBuffer;
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QMutex m_settingsMutex;
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};
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#endif // INCLUDE_CHANALYZER_H
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