ts::MPEG2AudioAttributes Class Reference

Audio attributes for MPEG-1 / MPEG-2 audio. More...

#include <tsMPEG2AudioAttributes.h>

Inheritance diagram for ts::MPEG2AudioAttributes:

Collaboration diagram for ts::MPEG2AudioAttributes:

Public Member Functions
	MPEG2AudioAttributes ()=default
	Default constructor.
BitRate	bitrate () const
	Bitrate in bits/second.
void	invalidate ()
	Invalidate the content of this instance.
bool	isValid () const
	Check if the values in the object are valid.
int	layer () const
	MPEG audio layer.
UString	layerName () const
	MPEG audio layer name.
virtual bool	moreBinaryData (const uint8_t *, size_t) override
	Provides an audio/video binary data to be analyzed by this instance.
int	samplingFrequency () const
	Sampling frequency in Hz.
UString	stereoDescription () const
	Mono/stereo mode name.
int	stereoMode () const
	Get the mono/stereo mode.
int	stereoModeExtension () const
	Get the mono/stereo mode extension.
virtual UString	toString () const override
	Convert to a string object.

Protected Attributes
bool	_is_valid = false
	A flag which indicates if the content of this object is valid.

Detailed Description

Audio attributes for MPEG-1 / MPEG-2 audio.

An MPEG2AudioAttributes object is built by transmitting audio frames from PES payloads. Initially, an AudioAttributes object is invalid.

Member Function Documentation

moreBinaryData()

virtual bool ts::MPEG2AudioAttributes::moreBinaryData ( const uint8_t *  addr, size_t  size  )

overridevirtual

Provides an audio/video binary data to be analyzed by this instance.

The type of data (complete PES payload or some type of "frame" or "access unit") depends on the type of audio/video.

Parameters

[in]	addr	Address of data to be analyzed.
[in]	size	Size of data to be analyzed.

Returns

True if the attributes object becomes valid or has new values.

Implements ts::AbstractAudioVideoAttributes.

toString()

virtual UString ts::MPEG2AudioAttributes::toString ( ) const

overridevirtual

Convert to a string object.

Returns

This object, converted as a string.

Implements ts::StringifyInterface.

layer()

int ts::MPEG2AudioAttributes::layer ( ) const

inline

MPEG audio layer.

Returns

The MPEG audio layer (1-3, 0 if unknown).

layerName()

UString ts::MPEG2AudioAttributes::layerName

(

)

const

MPEG audio layer name.

Returns

A string describing the MPEG audio layer.

bitrate()

BitRate ts::MPEG2AudioAttributes::bitrate ( ) const

inline

Bitrate in bits/second.

Returns

The bitrate in bits/second (0 if variable bitrate).

samplingFrequency()

int ts::MPEG2AudioAttributes::samplingFrequency ( ) const

inline

Sampling frequency in Hz.

Returns

The sampling frequency in Hz.

stereoMode()

int ts::MPEG2AudioAttributes::stereoMode ( ) const

inline

Get the mono/stereo mode.

Returns

The mono/stereo mode (see ISO 11172-3).

stereoModeExtension()

int ts::MPEG2AudioAttributes::stereoModeExtension ( ) const

inline

Get the mono/stereo mode extension.

Returns

The mono/stereo mode extension (see ISO 11172-3).

stereoDescription()

UString ts::MPEG2AudioAttributes::stereoDescription

(

)

const

Mono/stereo mode name.

Returns

A string describing the mono/stereo mode .

isValid()

bool ts::AbstractAudioVideoAttributes::isValid ( ) const

inlineinherited

Check if the values in the object are valid.

Returns

True if the values in the object are valid.

invalidate()

void ts::AbstractAudioVideoAttributes::invalidate ( )

inlineinherited

Invalidate the content of this instance.

It must be rebuilt using audio/video binary data.

Member Data Documentation

_is_valid

bool ts::AbstractAudioVideoAttributes::_is_valid = false

protectedinherited

A flag which indicates if the content of this object is valid.

It is the responsibility of the subclasses to set it.

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

• tsMPEG2AudioAttributes.h