AudioSilenceGenerator Class Reference

A QIODevice that produces an infinite stream of silence (zero-valued PCM samples). More...

#include <rtp_audio_silence_generator.h>

Inheritance diagram for AudioSilenceGenerator:

Public Member Functions
	AudioSilenceGenerator (QObject *parent=nullptr)
	Construct an AudioSilenceGenerator.
	~AudioSilenceGenerator ()
	Destroy the generator. No resources are released.
qint64	size () const override
	Return the logical size of the silence stream.
qint64	pos () const override
	Return the current read position within the silence stream.
bool	seek (qint64 off) override
	Seek to an absolute byte offset within the silence stream.

Protected Member Functions
qint64	readData (char *data, qint64 maxSize) override
	Fill data with up to maxSize zero-valued (silent) bytes.
qint64	writeData (const char *data, qint64 maxSize) override
	Not supported — this device is read-only.

Detailed Description

A QIODevice that produces an infinite stream of silence (zero-valued PCM samples).

Constructor & Destructor Documentation

AudioSilenceGenerator()

AudioSilenceGenerator::AudioSilenceGenerator ( QObject *  parent = nullptr )

explicit

Construct an AudioSilenceGenerator.

Parameters

parent

The parent QObject; may be nullptr.

Member Function Documentation

pos()

qint64 AudioSilenceGenerator::pos ( ) const

override

Return the current read position within the silence stream.

Returns

The number of bytes that have been read since construction or the last seek().

readData()

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

overrideprotected

Fill data with up to maxSize zero-valued (silent) bytes.

Parameters

data	Output buffer to fill with silence.
maxSize	Number of bytes the caller has requested.

Returns

maxSize — the number of bytes written into data.

seek()

bool AudioSilenceGenerator::seek ( qint64  off )

override

Seek to an absolute byte offset within the silence stream.

Parameters

off	The target byte offset. Must be non-negative.

Returns

true unconditionally; seeking always succeeds.

size()

qint64 AudioSilenceGenerator::size ( ) const

override

Return the logical size of the silence stream.

Returns

std::numeric_limits<qint64>::max() (or equivalent).

writeData()

qint64 AudioSilenceGenerator::writeData ( const char *  data, qint64  maxSize  )

overrideprotected

Not supported — this device is read-only.

Parameters

data	Ignored.
maxSize	Ignored.

Returns

-1 unconditionally.

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

• /builds/wireshark/wireshark/ui/qt/utils/rtp_audio_silence_generator.h
• /builds/wireshark/wireshark/ui/qt/utils/rtp_audio_silence_generator.cpp