dirac::PredModeCodec Class Reference

Codes and decodes the prediction modes. More...

#include <mv_codec.h>

Inheritance diagram for dirac::PredModeCodec:

Public Member Functions
	PredModeCodec (ByteIO *p_byteio, size_t number_of_contexts, const int num_refs)
	Constructor.
void	InitContexts ()
	Initialises the contexts.
Public Member Functions inherited from dirac::ArithCodec< MvData >
	ArithCodec (ByteIO *p_byteio, size_t number_of_contexts)
	Constructor for encoding.
virtual	~ArithCodec ()
	Destructor.
int	Compress (MvData &in_data)
	Compresses the input and returns the number of bits written.
void	Decompress (MvData &out_data, const int num_bytes)
	Decompresses the bitstream and writes into the output.
Public Member Functions inherited from dirac::ArithCodecBase
	ArithCodecBase (ByteIO *p_byteio, size_t number_of_contexts)
	Constructor.
virtual	~ArithCodecBase ()
	Destructor.

Private Member Functions
	PredModeCodec (const PredModeCodec &cpy)
	Private, bodyless copy constructor: class should not be copied.
PredModeCodec &	operator= (const PredModeCodec &rhs)
	Private, bodyless copy operator=: class should not be assigned.
void	CodeVal (const MvData &in_data)
void	DecodeVal (MvData &out_data)
void	DoWorkCode (MvData &in_data)
	Does the work of actually coding the data.
void	DoWorkDecode (MvData &out_data)
	virtual decode-only functions
void	ResetAll ()
unsigned int	Prediction (const TwoDArray< PredMode > &preddata) const

Private Attributes
int	m_b_xp
int	m_b_yp
int	m_sb_xp
int	m_sb_yp
int	m_sb_tlb_x
int	m_sb_tlb_y
int	m_num_refs

Additional Inherited Members
Protected Member Functions inherited from dirac::ArithCodec< MvData >
Protected Member Functions inherited from dirac::ArithCodecBase
void	InitEncoder ()
	Initialises the Encoder.
void	EncodeSymbol (const bool symbol, const int context_num)
	encodes a symbol and writes to output
void	EncodeUInt (const unsigned int value, const int bin1, const int max_bin)
void	EncodeSInt (const int value, const int bin1, const int max_bin)
void	FlushEncoder ()
	flushes the output of the encoder.
int	ByteCount () const
void	InitDecoder (int num_bytes)
	Initialise the Decoder.
bool	DecodeSymbol (int context_num)
	Decodes a symbol given a context number.
unsigned int	DecodeUInt (const int bin1, const int max_bin)
int	DecodeSInt (const int bin1, const int max_bin)
Protected Attributes inherited from dirac::ArithCodecBase
std::vector< Context >	m_context_list
	List of contexts.

Detailed Description

Derived from the ArithCodec class, this codes and decodes the prediction mode.

Constructor & Destructor Documentation

PredModeCodec() [1/2]

dirac::PredModeCodec::PredModeCodec	(	ByteIO *	p_byteio,
		size_t	number_of_contexts,
		const int	num_refs )

Creates a MvDataCodec object to encode MV data, based on parameters

Parameters

p_byteio	Input/output for the encoded bits
number_of_contexts	the number of contexts used
num_refs	Number of references

PredModeCodec() [2/2]

dirac::PredModeCodec::PredModeCodec ( const PredModeCodec & cpy )

private

Member Function Documentation

CodeVal()

void dirac::PredModeCodec::CodeVal ( const MvData & in_data )

private

DecodeVal()

void dirac::PredModeCodec::DecodeVal ( MvData & out_data )

private

DoWorkCode()

void dirac::PredModeCodec::DoWorkCode ( MvData & in_data )

privatevirtual

Implements dirac::ArithCodec< MvData >.

DoWorkDecode()

void dirac::PredModeCodec::DoWorkDecode ( MvData & out_data )

privatevirtual

Implements dirac::ArithCodec< MvData >.

InitContexts()

void dirac::PredModeCodec::InitContexts

(

)

operator=()

PredModeCodec & dirac::PredModeCodec::operator= ( const PredModeCodec & rhs )

private

Prediction()

unsigned int dirac::PredModeCodec::Prediction ( const TwoDArray< PredMode > & preddata ) const

private

ResetAll()

void dirac::PredModeCodec::ResetAll ( )

private

Member Data Documentation

m_b_xp

int dirac::PredModeCodec::m_b_xp

private

m_b_yp

int dirac::PredModeCodec::m_b_yp

private

m_num_refs

int dirac::PredModeCodec::m_num_refs

private

m_sb_tlb_x

int dirac::PredModeCodec::m_sb_tlb_x

private

m_sb_tlb_y

int dirac::PredModeCodec::m_sb_tlb_y

private

m_sb_xp

int dirac::PredModeCodec::m_sb_xp

private

m_sb_yp

int dirac::PredModeCodec::m_sb_yp

private

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

• mv_codec.h