mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-30 08:08:39 -05:00
d944726723
There are several object lifetime issues that can cause crashes on application close down. This change is the first phase of addressing these issues. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5719 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
#ifndef MODULATOR_HPP__
|
|
#define MODULATOR_HPP__
|
|
|
|
#include <QAudio>
|
|
#include <QPointer>
|
|
|
|
#include "AudioDevice.hpp"
|
|
|
|
class SoundOutput;
|
|
|
|
//
|
|
// Input device that generates PCM audio frames that encode a message
|
|
// and an optional CW ID.
|
|
//
|
|
// Output can be muted while underway, preserving waveform timing when
|
|
// transmission is resumed.
|
|
//
|
|
class Modulator
|
|
: public AudioDevice
|
|
{
|
|
Q_OBJECT;
|
|
|
|
public:
|
|
enum ModulatorState {Synchronizing, Active, Idle};
|
|
|
|
Modulator (unsigned frameRate, unsigned periodLengthInSeconds, QObject * parent = nullptr);
|
|
|
|
void close () override;
|
|
|
|
bool isTuning () const {return m_tuning;}
|
|
double frequency () const {return m_frequency;}
|
|
bool isActive () const {return m_state != Idle;}
|
|
void setSpread(double s) {m_fSpread=s;}
|
|
void setPeriod(unsigned p) {m_period=p;}
|
|
|
|
Q_SLOT void start (unsigned symbolsLength, double framesPerSymbol, double frequency, double toneSpacing, SoundOutput *, Channel = Mono, bool synchronize = true, double dBSNR = 99.);
|
|
Q_SLOT void stop (bool quick = false);
|
|
Q_SLOT void tune (bool newState = true);
|
|
Q_SLOT void setFrequency (double newFrequency) {m_frequency = newFrequency;}
|
|
Q_SIGNAL void stateChanged (ModulatorState) const;
|
|
|
|
protected:
|
|
qint64 readData (char * data, qint64 maxSize);
|
|
qint64 writeData (char const * /* data */, qint64 /* maxSize */)
|
|
{
|
|
return -1; // we don't consume data
|
|
}
|
|
|
|
private:
|
|
qint16 postProcessSample (qint16 sample) const;
|
|
|
|
QPointer<SoundOutput> m_stream;
|
|
bool m_quickClose;
|
|
|
|
unsigned m_symbolsLength;
|
|
|
|
static double const m_twoPi;
|
|
static unsigned const m_nspd; // CW ID WPM factor
|
|
|
|
double m_phi;
|
|
double m_dphi;
|
|
double m_amp;
|
|
double m_nsps;
|
|
double volatile m_frequency;
|
|
double m_frequency0;
|
|
double m_snr;
|
|
double m_fac;
|
|
double m_toneSpacing;
|
|
double m_fSpread;
|
|
|
|
qint64 m_silentFrames;
|
|
qint32 m_itone0;
|
|
qint16 m_ramp;
|
|
|
|
unsigned m_frameRate;
|
|
unsigned m_period;
|
|
ModulatorState volatile m_state;
|
|
|
|
bool volatile m_tuning;
|
|
bool m_addNoise;
|
|
|
|
bool m_cwLevel;
|
|
unsigned m_ic;
|
|
unsigned m_isym0;
|
|
};
|
|
|
|
#endif
|