Dirac - A Video Codec

Created by the British Broadcasting Corporation.

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dirac::IntraDCBandVLC Class Reference

A class specially for coding the DC subband of Intra frames. More...

#include <band_vlc.h>

Inheritance diagram for dirac::IntraDCBandVLC:

[legend]Collaboration diagram for dirac::IntraDCBandVLC:[legend]List of all members.

Public Member Functions

• IntraDCBandVLC (SubbandByteIO *subband_byteio, const SubbandList &band_list)

  Constructor.
  

Private Member Functions

• void DoWorkCode (CoeffArray &in_data)
• void DoWorkDecode (CoeffArray &out_data)
• void CodeCoeffBlock (const CodeBlock &code_block, CoeffArray &in_data)
• void DecodeCoeffBlock (const CodeBlock &code_block, CoeffArray &out_data)
• void DCPrediction (const CodeBlock &code_block, CoeffArray &out_data)
• IntraDCBandVLC (const IntraDCBandVLC &cpy)

  Private, bodyless copy constructor: class should not be copied.
  

• IntraDCBandVLC & operator= (const IntraDCBandVLC &rhs)

  Private, bodyless copy operator=: class should not be assigned.
  

• CoeffType GetPrediction (const CoeffArray &data, const int xpos, const int ypos) const

  Prediction of a DC value from its previously coded neighbours.
  

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Detailed Description

A class specially for coding the DC subband of Intra frames, using intra-band prediction of coefficients.

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Constructor & Destructor Documentation

dirac::IntraDCBandVLC::IntraDCBandVLC	(	SubbandByteIO *	subband_byteio,
		const SubbandList &	band_list
	)			[inline]

Creates a IntraDCBandVLC object to encode subband data, based on parameters

Parameters:

	subband_byteio	input/output for the encoded bits
	band_list	the set of all the subbands

dirac::IntraDCBandVLC::IntraDCBandVLC

(

const IntraDCBandVLC &

cpy

)

[private]

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Member Function Documentation

void dirac::IntraDCBandVLC::CodeCoeffBlock	(	const CodeBlock &	code_block,
		CoeffArray &	in_data
	)			[private, virtual]

Reimplemented from dirac::BandVLC.

void dirac::IntraDCBandVLC::DCPrediction	(	const CodeBlock &	code_block,
		CoeffArray &	out_data
	)			[private]

void dirac::IntraDCBandVLC::DecodeCoeffBlock	(	const CodeBlock &	code_block,
		CoeffArray &	out_data
	)			[private, virtual]

Reimplemented from dirac::BandVLC.

void dirac::IntraDCBandVLC::DoWorkCode

(

CoeffArray &

in_data

)

[private, virtual]

Reimplemented from dirac::BandVLC.

void dirac::IntraDCBandVLC::DoWorkDecode

(

CoeffArray &

out_data

)

[private, virtual]

Reimplemented from dirac::BandVLC.

CoeffType dirac::IntraDCBandVLC::GetPrediction	(	const CoeffArray &	data,
		const int	xpos,
		const int	ypos
	)			const [private]

IntraDCBandVLC& dirac::IntraDCBandVLC::operator=

(

const IntraDCBandVLC &

rhs

)

[private]

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

• band_vlc.h

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© 2004 British Broadcasting Corporation. Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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