ts::AC3Attributes Class Reference

AC-3 (DD) and Enhanced-AC-3 (DD+) audio attributes. More...

#include <tsAC3Attributes.h>

Inheritance diagram for ts::AC3Attributes:

Collaboration diagram for ts::AC3Attributes:

Public Member Functions
	AC3Attributes ()=default
	Default constructor.
UString	audioCodingDescription () const
	String representation of audio coding mode.
int	audioCodingMode () const
	Audio coding mode ("acmod").
int	bitstreamId () const
	Bitstream identification ("bsid").
int	bitstreamMode () const
	Bitstream mode ("bsmod", metadata info).
UString	bitstreamModeDescription () const
	String representation of bitstream mode.
uint8_t	componentType () const
	Rebuild a component_type for AC-3 descriptors.
bool	dolbySurround () const
	Check if this is Dolby Surround.
void	invalidate ()
	Invalidate the content of this instance.
bool	isEnhancedAC3 () const
	Check if this is Enhanced-AC-3.
bool	isValid () const
	Check if the values in the object are valid.
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.
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

AC-3 (DD) and Enhanced-AC-3 (DD+) audio attributes.

See ETSI TS 102 366 for the specification and encoding of AC-3 and Enhanced-AC-3.

An AC3Attributes object is built by transmitting audio frames from PES payloads. Initially, an AC3Attributes object is invalid.

Member Function Documentation

moreBinaryData()

virtual bool ts::AC3Attributes::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::AC3Attributes::toString ( ) const

overridevirtual

Convert to a string object.

Returns

This object, converted as a string.

Implements ts::StringifyInterface.

isEnhancedAC3()

bool ts::AC3Attributes::isEnhancedAC3 ( ) const

inline

Check if this is Enhanced-AC-3.

Returns

True for Enhanced-AC-3, false for AC-3.

bitstreamId()

int ts::AC3Attributes::bitstreamId ( ) const

inline

Bitstream identification ("bsid").

Returns

The bitstream identification ("bsid"), see ETSI TS 102 366.

bitstreamMode()

int ts::AC3Attributes::bitstreamMode ( ) const

inline

Bitstream mode ("bsmod", metadata info).

Returns

The bitstream mode ("bsmod", metadata info), see ETSI TS 102 366.

bitstreamModeDescription()

UString ts::AC3Attributes::bitstreamModeDescription

(

)

const

String representation of bitstream mode.

Returns

The string representation of bitstream mode.

See also

bitstreamMode()

audioCodingMode()

int ts::AC3Attributes::audioCodingMode ( ) const

inline

Audio coding mode ("acmod").

Returns

The audio coding mode ("acmod"), see ETSI TS 102 366.

audioCodingDescription()

UString ts::AC3Attributes::audioCodingDescription

(

)

const

String representation of audio coding mode.

Returns

The string representation of audio coding mode.

See also

audioCodingMode()

samplingFrequency()

int ts::AC3Attributes::samplingFrequency ( ) const

inline

Sampling frequency in Hz.

Returns

The sampling frequency in Hz.

dolbySurround()

bool ts::AC3Attributes::dolbySurround ( ) const

inline

Check if this is Dolby Surround.

Returns

True if this is Dolby Surround.

componentType()

uint8_t ts::AC3Attributes::componentType

(

)

const

Rebuild a component_type for AC-3 descriptors.

Returns

The component_type value for an AC-3 descriptor. See ETSI 300 468 V1.9.1, annex D.1.

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:

• tsAC3Attributes.h