Kwave::Normalizer Class Reference

#include <Normalizer.h>

Inheritance diagram for Kwave::Normalizer:

Collaboration diagram for Kwave::Normalizer:

Public Slots
void	input (Kwave::SampleArray data)
void	setGain (const QVariant g)
void	setLimiterLevel (const QVariant l)

Signals
void	output (Kwave::SampleArray data)
Signals inherited from Kwave::StreamObject
void	attributeChanged (const QVariant value)

Public Member Functions
	Normalizer ()
virtual	~Normalizer () Q_DECL_OVERRIDE
virtual void	goOn () Q_DECL_OVERRIDE
Public Member Functions inherited from Kwave::SampleSource
	SampleSource (QObject *parent=Q_NULLPTR)
virtual	~SampleSource ()
virtual bool	done () const
Public Member Functions inherited from Kwave::StreamObject
	StreamObject (QObject *parent=Q_NULLPTR)
virtual	~StreamObject ()
virtual unsigned int	tracks () const
virtual Kwave::StreamObject *	operator[] (unsigned int track)
virtual unsigned int	tracksOfPort (const char *port) const
virtual Kwave::StreamObject *	port (const char *port, unsigned int track)
virtual unsigned int	blockSize () const
void	setAttribute (const char *attribute, const QVariant &value)

Private Attributes
Kwave::SampleArray	m_buffer
double	m_gain
double	m_limit

Additional Inherited Members
Static Public Member Functions inherited from Kwave::StreamObject
static void	setInteractive (bool interactive)

Detailed Description

Definition at line 34 of file Normalizer.h.

Constructor & Destructor Documentation

Normalizer()

Kwave::Normalizer::Normalizer

(

)

Constructor

Definition at line 30 of file Normalizer.cpp.

    :Kwave::SampleSource(Q_NULLPTR), m_gain(1.0), m_limit(0.5)
{
}

~Normalizer()

Kwave::Normalizer::~Normalizer ( )

virtual

Destructor

Definition at line 36 of file Normalizer.cpp.

{
}

Member Function Documentation

goOn()

void Kwave::Normalizer::goOn ( )

virtual

does the calculation

Implements Kwave::SampleSource.

Definition at line 41 of file Normalizer.cpp.

{
}

input

void Kwave::Normalizer::input ( Kwave::SampleArray  data )

slot

receives input data

Definition at line 73 of file Normalizer.cpp.

References double2sample(), limiter(), m_gain, m_limit, output(), sample2double(), and Kwave::SampleArray::size().

{
    const unsigned int len = data.size();
    const bool use_limiter = (m_gain > 1.0);

    for (unsigned int i = 0; i < len; i++) {
        double s = sample2double(data[i]);
        s *= m_gain;
        if (use_limiter) s = limiter(s, m_limit);
        data[i] = double2sample(s);
    }

    emit output(data);
}

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output

void Kwave::Normalizer::output ( Kwave::SampleArray  data )

signal

emits a block with the filtered data

Referenced by input().

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setGain

void Kwave::Normalizer::setGain ( const QVariant  g )

slot

Sets the gain of the amplifier [0...1]

Definition at line 89 of file Normalizer.cpp.

References m_gain.

{
    m_gain = QVariant(g).toDouble();
}

setLimiterLevel

void Kwave::Normalizer::setLimiterLevel ( const QVariant  l )

slot

Sets the limiter level [linear, 0...1]

Definition at line 95 of file Normalizer.cpp.

References m_limit.

{
    m_limit = QVariant(l).toDouble();
}

Member Data Documentation

m_buffer

Kwave::SampleArray Kwave::Normalizer::m_buffer

private

buffer for input

Definition at line 71 of file Normalizer.h.

m_gain

double Kwave::Normalizer::m_gain

private

gain

Definition at line 74 of file Normalizer.h.

Referenced by input(), and setGain().

m_limit

double Kwave::Normalizer::m_limit

private

limiter level

Definition at line 77 of file Normalizer.h.

Referenced by input(), and setLimiterLevel().

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

• plugins/normalize/Normalizer.h
• plugins/normalize/Normalizer.cpp