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https://github.com/saitohirga/WSJT-X.git
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5eb5735168
The code was starting streams linked to closed devices which may be causing issues on the Mac version. I have refactored to ensure that devices are always opened before related audio streams are started. Made .h C++ headers emacs friendly. Removed some code in the MainWindow contructor that read the log file but failed to check if the file exists and didn't do anything with the data anyway. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3977 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
#ifndef MODULATOR_HPP__
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#define MODULATOR_HPP__
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#include "AudioDevice.hpp"
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class QAudioOutput;
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//
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// Input device that generates PCM audio frames that encode a message
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// and an optional CW ID.
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//
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// Output can be muted while underway, preserving waveform timing when
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// transmission is resumed.
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//
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class Modulator
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: public AudioDevice
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{
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Q_OBJECT;
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public:
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enum ModulatorState {Synchronizing, Active, Idle};
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Modulator (unsigned frameRate, unsigned periodLengthInSeconds, QObject * parent = nullptr);
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void close () override;
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bool isTuning () const {return m_tuning;}
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bool isMuted () const {return m_muted;}
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unsigned frequency () const {return m_frequency;}
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bool isActive () const {return m_state != Idle;}
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void setWide9(double d1, double d2) {m_toneSpacing=d1; m_fSpread=d2;}
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Q_SLOT void start (unsigned symbolsLength, double framesPerSymbol, unsigned frequency, QAudioOutput *, Channel = Mono, bool synchronize = true, double dBSNR = 99.);
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Q_SLOT void stop ();
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Q_SLOT void tune (bool newState = true) {m_tuning = newState;}
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Q_SLOT void mute (bool newState = true) {m_muted = newState;}
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Q_SLOT void setFrequency (unsigned newFrequency) {m_frequency = newFrequency;}
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Q_SIGNAL void stateChanged (ModulatorState) const;
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protected:
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qint64 readData (char * data, qint64 maxSize);
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qint64 writeData (char const * /* data */, qint64 /* maxSize */)
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{
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return -1; // we don't consume data
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}
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private:
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qint16 postProcessSample (qint16 sample) const;
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QAudioOutput * m_stream;
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unsigned m_symbolsLength;
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static double const m_twoPi;
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static unsigned const m_nspd; // CW ID WPM factor
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double m_phi;
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double m_dphi;
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double m_amp;
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double m_nsps;
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double volatile m_frequency;
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double m_snr;
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double m_fac;
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double m_toneSpacing;
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double m_fSpread;
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qint64 m_silentFrames;
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qint64 m_framesSent;
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unsigned m_frameRate;
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unsigned m_period;
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ModulatorState volatile m_state;
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bool volatile m_tuning;
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bool volatile m_muted;
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bool m_addNoise;
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unsigned m_ic;
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unsigned m_isym0;
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qint16 m_ramp;
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};
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#endif
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