Modulator Class Reference

#include <Modulator.h>

Inheritance diagram for Modulator:

Collaboration diagram for Modulator:

Public Types
enum class	State { Synchronizing , Active , Idle }
Public Types inherited from AudioDevice
enum	Channel { Mono , Left , Right , Both }

Public Member Functions
	Modulator (QObject *parent=nullptr)
bool	isIdle () const
void	close () override
	Close the modulator.
Q_SLOT void	setAudioFrequency (double const audioFrequency)
Q_SLOT void	start (double audioFrequency, int submode, double tx_delay, SoundOutput *stream, Channel channel)
	Start the modulation process.
Q_SLOT void	stop (bool quick=false)
	Stop the modulation process.
Q_SLOT void	tune (bool state=true)
	Set tuning mode.
Public Member Functions inherited from AudioDevice
bool	initialize (OpenMode mode, Channel channel)
bool	isSequential () const override
size_t	bytesPerFrame () const
Channel	channel () const

Protected Member Functions
qint64	readData (char *, qint64) override
	Read data from the modulator.
qint64	writeData (char const *, qint64) override
qint64	bytesAvailable () const override
Protected Member Functions inherited from AudioDevice
	AudioDevice (QObject *parent=nullptr)
void	store (char const *source, size_t numFrames, qint16 *dest)
qint16 *	load (qint16 const sample, qint16 *dest)

Additional Inherited Members
Static Public Member Functions inherited from AudioDevice
static char const *	toString (Channel c)
static Channel	fromString (QString const &str)

Detailed Description

Audio device that generates PCM audio frames that encode a message.

Output can be muted while underway, preserving waveform timing when transmission is resumed.

This is intended to run in a thread different from the GUI thread. It is not generally thread-safe, see remarks below.

Member Function Documentation

isIdle()

bool Modulator::isIdle ( ) const

inline

Whether the device is idle.

This method is thread-safe, i.e., can be called from a different thread.

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readData()

qint64 Modulator::readData ( char * data, qint64 maxSize )

overrideprotected

Read data from the modulator.

Parameters

data
maxSize

Returns

qint64

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setAudioFrequency()

Q_SLOT void Modulator::setAudioFrequency ( double const audioFrequency )

inline

Sets the audio frequency.

This is not by itself thread-safe, but ok if fed via the Qt signalling mechanism.

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start()

void Modulator::start	(	double	audioFrequency,
		int	submode,
		double	tx_delay,
		SoundOutput *	stream,
		Channel	channel )

Start the modulation process.

Parameters

frequency
submode
txDelay
stream
channel

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stop()

void Modulator::stop

(

bool

quick = false

)

Stop the modulation process.

Parameters

quickClose

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tune()

void Modulator::tune

(

bool

state = true

)

Set tuning mode.

Parameters

tuning

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The documentation for this class was generated from the following files:

• JS8_Mode/Modulator.h
• JS8_Mode/Modulator.cpp