ts::AC3Attributes Class Reference

#include <tsAC3Attributes.h>

Inheritance diagram for ts::AC3Attributes:

Collaboration diagram for ts::AC3Attributes:

Public Member Functions
	AC3Attributes ()=default
UString	audioCodingDescription () const
int	audioCodingMode () const
int	bitstreamId () const
int	bitstreamMode () const
UString	bitstreamModeDescription () const
uint8_t	componentType () const
bool	dolbySurround () const
void	invalidate ()
bool	isEnhancedAC3 () const
bool	isValid () const
virtual bool	moreBinaryData (const uint8_t *, size_t) override
int	samplingFrequency () const
virtual UString	toString () const override

Protected Attributes
bool	_is_valid = false

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.

Constructor & Destructor Documentation

AC3Attributes()

ts::AC3Attributes::AC3Attributes ( )

default

Default constructor.

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