The M-Coder (binary) arithmetic decoder class. More...

#include <mCoder.hpp>

Inherits SPL::MCoder.

Public Member Functions
	MDecoder (int numContexts=0, InputBitStream *in=0)
	Create a decoder with the specified number of contexts that reads input from the given bit stream. More...

	~MDecoder ()
	Destroy a decoder. More...

void	setNumContexts (int numContexts)
	Set the number of contexts. More...

int	getNumContexts () const
	Get the number of contexts. More...

void	setInput (InputBitStream *in)
	Set the input bit stream (i.e., the bit stream from which encoded data is to be read). More...

InputBitStream *	getInput () const
	Get the input bit stream (i.e., the bit stream from which encoded data is to be read). More...

void	clearContexts ()
	Clear the state of all of the contexts. More...

long	getBitCount () const
	Get the number of bits read so far. More...

long	getSymCount () const
	Get the number of symbols decoded so far. More...

int	start ()
	Prepare to decode an arithmetic code word. More...

int	terminate ()
	Terminate the arithmetic code word. More...

int	decodeRegular (int contextId)
	Decode a symbol in the specified context. More...

int	decodeBypass ()
	Decode a symbol in bypass mode (i.e., assuming both symbols are equiprobable). More...

void	dump (std::ostream &out) const
	Dump the internal state information for the decoder to a stream (for debugging). More...

Static Public Member Functions
static void	setDebugLevel (int debugLevel)
	Set the debug level. More...

static void	setDebugStream (std::ostream &debugStream)
	Set the stream to use for debugging output. More...

static std::ostream &	getDebugStream ()
	Get the stream used for debugging output. More...

Detailed Description

The M-Coder (binary) arithmetic decoder class.

Constructor & Destructor Documentation

Create a decoder with the specified number of contexts that reads input from the given bit stream.

SPL::MDecoder::~MDecoder ( )

Destroy a decoder.

void SPL::MDecoder::clearContexts ( )

Clear the state of all of the contexts.

int SPL::MDecoder::decodeBypass ( )

Decode a symbol in bypass mode (i.e., assuming both symbols are equiprobable).

int SPL::MDecoder::decodeRegular ( int contextId )

Decode a symbol in the specified context.

void SPL::MDecoder::dump ( std::ostream & out ) const

Dump the internal state information for the decoder to a stream (for debugging).

std::ostream & SPL::MDecoder::getDebugStream ( )

static

Get the stream used for debugging output.

void SPL::MDecoder::setDebugLevel ( int debugLevel )

static

Set the debug level.

void SPL::MDecoder::setDebugStream ( std::ostream & debugStream )

static

Set the stream to use for debugging output.

void SPL::MDecoder::setNumContexts ( int numContexts )

Set the number of contexts.

int SPL::MDecoder::start ( )

Prepare to decode an arithmetic code word.

Note: This function must be called before attempting to decode any symbols.

int SPL::MDecoder::terminate ( )

Terminate the arithmetic code word.

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