A compressed picture in Dirac bytestream format.

#include <picture_byteio.h>

Inheritance diagram for dirac::PictureByteIO:

Public Member Functions
	PictureByteIO (PictureParams &frame_params, int frame_num)
	Constructor.
	PictureByteIO (PictureParams &frame_params, const ParseUnitByteIO &parseunit_byteio)
	Constructor.
virtual	~PictureByteIO ()
	Destructor.
void	CollateByteStats (DiracByteStats &dirac_byte_stats)
	Gathers byte stats on the picture data.
bool	Input ()
	Inputs data from Dirac stream-format.
void	Output ()
	Outputs picture values to Dirac stream-format.
const std::string	GetBytes ()
	Gets string containing coded bytes.
int	GetSize () const
	*Gets size (in bytes)
ParseUnitType	GetType () const
	Gets parse-unit type.
int	IsRef () const
	Returns true is picture in Reference picture.
int	IsNonRef () const
	Returns true is picture in Non-Reference picture.
int	NumRefs () const
	Gets parse-unit type.
bool	IsIntra () const
	Returns true is picture is Intra picture.
bool	IsInter () const
	Returns true is picture is Inter picture.
void	SetMvData (MvDataByteIO *mv_data)
void	SetTransformData (TransformByteIO *transform_data)
Public Member Functions inherited from dirac::ParseUnitByteIO
	ParseUnitByteIO ()
	Constructor.
	ParseUnitByteIO (const ByteIO &byte_io)
	Constructor.
	ParseUnitByteIO (const ParseUnitByteIO &parseunit_byteio)
	Constructor.
	~ParseUnitByteIO ()
	Destructor.
bool	IsValid ()
	Accesses validity of a unit by comparing it with an adjacent unit.
bool	CanSkip ()
	Can Skip past the entire parse-unit.
void	SetAdjacentParseUnits (ParseUnitByteIO *p_prev_parseunit)
	Set next/previous parse-unit values.
int	GetNextParseOffset () const
	Gets expected number of bytes to start of next parse-unit.
int	GetPreviousParseOffset () const
	Gets number of bytes to start of previous parse-unit.
bool	IsSeqHeader () const
	Returns true is parse unit is a Sequence Header.
bool	IsEndOfSequence () const
	Returns true is parse unit is an End of Sequence unit.
bool	IsAuxiliaryData () const
	Returns true is parse unit is Auxiliary Data.
bool	IsPaddingData () const
	Returns true is parse unit is Padding data.
bool	IsPicture () const
	Returns true is parse unit is Picture data.
bool	IsLowDelay () const
	Returns true is parse unit is Low Delay Sybtax unit.
bool	IsCoreSyntax () const
	Returns true is parse unit is Core syntax unit.
bool	IsUsingAC () const
	Returns true is parse unit uses Arithmetic coding.
Public Member Functions inherited from dirac::ByteIO
	ByteIO (bool new_stream=true)
	Default constructor.
	ByteIO (const ByteIO &stream_data)
	Constructor.
virtual	~ByteIO ()
	Destructor.
int	GetReadBytePosition () const
	Get position of read stream pointer.
void	SetByteParams (const ByteIO &byte_io)
	Copies stream source/destination info.
void	ByteAlignOutput ()
	Sync input for byte-alignment.
void	WriteUint (unsigned int value)
	Ouputs an unsigned integer in interleaved exp Golomb format.
void	SetBitsLeft (int left_bits)
	Sets input size in bits.
int	BitsLeft (void)
	Sets input size in bits.

Private Member Functions
unsigned char	CalcParseCode () const
	Calculates parse-code based on picture parameters.
void	InputReferencePictures ()
	Reads reference-picture data.
void	InputRetiredPicture ()
	Reads retired picture number.
void	SetPictureType ()
	Calculates picture-type (eg INTRA/INTER) of picture.
void	SetReferenceType ()
	Calculates reference-type of picture.
void	SetEntropyCodingFlag ()
	Sets the entropy coding flag in the picture parameters.

Private Attributes
PictureParams &	m_frame_params
	Picture parameters.
int	m_frame_num
	Picture number.
MvDataByteIO *	m_mv_data
	MV data.
TransformByteIO *	m_transform_data
	Transform data.

Additional Inherited Members
Protected Member Functions inherited from dirac::ParseUnitByteIO
virtual int	CalcNextUnitOffset ()
	Calculates number of bytes to start of next unit.
bool	SyncToUnitStart ()
	Locates start of parse-unit.
unsigned char	GetParseCode () const
	Get parse code.
Protected Member Functions inherited from dirac::ByteIO
bool	CanRead () const
bool	GetBit (unsigned char &c, int pos) const
void	SetBit (unsigned char &c, int pos) const
void	SetBits (unsigned char &c, unsigned char bits) const
void	ByteAlignInput ()
	Sync input for byte-alignment.
bool	ReadBool ()
	Reads boolean value.
bool	ReadBoolB ()
	Reads boolean value - bounded i/o.
int	ReadBit ()
	Reads next bit.
int	ReadBitB ()
	Reads next bit - bounded i/o.
unsigned int	ReadNBits (int count)
	Reads next 'count' bits.
void	InputBytes (char *data, int count)
	Reads from stream.
void	FlushInputB ()
	Flushes the bounde input.
int	ReadSint ()
	Reads a signed integer in interleaved exp-Golomb format *return Signed integer read.
int	ReadSintB ()
	Reads a signed integer in interleaved exp-Golomb format from bounded input *return Signed integer read.
unsigned int	ReadUint ()
	Reads an unsigned integer in interleaved exp Golomb format.
unsigned int	ReadUintB ()
	Reads an unsigned integer in interleaved exp Golomb format from bounded input.
unsigned int	ReadUintLit (const int byte_size)
	Reads a fixed length unsigned integer from the stream in big endian.
unsigned char	InputUnByte ()
	Reads a byte from the stream.
std::string	InputUnString (const int count)
	Reads a series of bytes from a stream.
void	WriteBit (const bool &bit)
	Outputs a bit.
int	WriteNBits (unsigned int val)
	Outputs an unsigned integer.
void	WriteNBits (unsigned int val, int count)
	Outputs an n bit integer.
void	OutputBytes (const std::string &bytes)
	Outputs a series of bytes.
void	OutputCurrentByte ()
	Outputs current byte contents.
void	WriteSint (int val)
	Outputs an integer in Golomb signed integer format.
void	WriteUintLit (const unsigned int &value, const int &length)
	Output unsigned int value in big endian format.
void	RemoveRedundantBytes (const int count)
	Removes portion of byte-stream no longer required.
void	SeekGet (const int offset, std::ios_base::seekdir dir)