dirac Namespace Reference

Classes
class	ArithCodec
	Abstract binary arithmetic coding class. More...
class	Range
	Range type. More...
class	OneDArray
	A template class for one-dimensional arrays. More...
class	TwoDArray
	A template class for two-dimensional arrays. More...
class	BandCodec
	A general class for coding and decoding wavelet subband data. More...
class	LFBandCodec
	A class specially for coding the LF subbands. More...
class	IntraDCBandCodec
	A class specially for coding the DC subband of Intra frames. More...
class	BasicOutputManager
	Class for managing bit- and byte-oriented output. More...
class	UnitOutputManager
	A class for handling data output, including headers. More...
class	FrameOutputManager
class	SequenceOutputManager
class	BitInputManager
	A class for managing bit-wise and byte-wise input. More...
class	CommandLine
class	PicArray
	A class for picture component data. More...
class	CostType
	A structure for recording costs, particularly in quantisation. More...
class	EntropyCorrector
	A class used for correcting estimates of entropy. More...
class	OLBParams
	Parameters for overlapped block motion compensation. More...
class	SeqParams
	Parameters relating to the video sequence being encoded/decoded. More...
class	FrameParams
	Parameters for initialising frame class objects. More...
class	CodecParams
	Parameters common to coder and decoder operation. More...
class	EncoderParams
	Parameters for the encoding process. More...
class	DecoderParams
	Parameters for the decoding process. More...
class	Frame
	A class for encapsulating all the data relating to a frame. More...
class	FrameBuffer
	Holds frames both for reference and to overcome reordering delay. More...
class	MotionCompensator
	Motion compensator class. More...
class	MotionVector
	Motion vector class - just a pair. More...
class	MvCostData
	Class for recording costs derived in motion estimation. More...
class	MvData
	Class for all the motion vector data. More...
class	MEData
	Class for all the motion estimation data. More...
class	MvDataCodec
	Codes and decodes all the Motion Vector data. More...
class	StreamPicOutput
	Class for outputting pictures. More...
class	MemoryStreamOutput
class	FileStreamOutput
class	StreamPicInput
	Picture input class. More...
class	MemoryStreamInput
class	FileStreamInput
	Picture input class. More...
class	UpConverter
	Upconversion class. More...
class	Subband
	Class encapsulating all the metadata relating to a wavelet subband. More...
class	SubbandList
	A class encapulating all the subbands produced by a transform. More...
class	PredictStep
	Class to do two-tap prediction lifting step. More...
class	UpdateStep
	Class to do two-tap updating lifting step. More...
class	WaveletTransform
	A class to do wavelet transforms. More...
class	CompDecompressor
	Compress a frame component. More...
class	InputStreamBuffer
	Input Stream Buffer Class. More...
class	DiracParser
	Dirac Stream Parser Class. More...
class	FrameDecompressor
	Compress a single image frame. More...
class	SequenceDecompressor
	Decompresses a sequence of frames from a stream. More...
class	CompCompressor
	Compress a frame component. More...
class	FrameCompressor
	Compress a single image frame. More...
class	QualityMonitor
	Class to monitor the quality of pictures and adjust coding parameters appropriately. More...
class	SequenceCompressor
	Compresses a sequence of frames from a stream. More...
class	BlockMatcher
	Class to do block matching. More...
class	DownConverter
	A class for fast downconversion of picture data. More...
class	ModeDecider
	Decides between macroblock and block prediction modes. More...
class	SubpelRefine
	The SubpelRefine class takes pixel-accurate motion vectors and refines them to 1/8-pixel accuracy. More...
class	BlockDiffParams
	A class encapsulating parameters for calculating a block difference value (a single instance of matching). More...
class	BlockDiff
	An abstract class for doing block difference calculations. More...
class	SimpleBlockDiff
	A class for doing block differences without bounds-checking, inherited from BlockDiff. More...
class	BChkBlockDiff
	A class for doing block differences with bounds-checking, inherited from BlockDiff. More...
class	IntraBlockDiff
	A class for calculating the difference between a block and its DC value (average). More...
class	BiBlockDiff
	A virtual class for bi-directional differences. More...
class	BiSimpleBlockDiff
	A class for bi-directional differences with two references, and no bounds checking. More...
class	BiBChkBlockDiff
	A class for bi-directional differences with two references, with bounds checking. More...
class	BlockDiffUp
	An abstract class for doing block differences with an upconverted reference. More...
class	SimpleBlockDiffUp
	A class for doing block differences without bounds-checking with upconverted references, inherited from BlockDiffUp. More...
class	BChkBlockDiffUp
	A class for doing block differences with bounds-checking with upconverted references, inherited from BlockDiffUp. More...
class	BiBlockDiffUp
	An abstract class for doing block differences with two upconverted references. More...
class	BiSimpleBlockDiffUp
	A class for doing bi-directional block differences without bounds checking. More...
class	BiBChkBlockDiffUp
	A class for doing bi-directional block differences with bounds checking. More...
class	MotionEstimator
	Class to handle the whole motion estimation process. More...
class	PixelMatcher
Typedefs
typedef short	ValueType
typedef int	CalcValueType
typedef MotionVector< int >	MVector
	MVector class is a vector of ints.
typedef MotionVector< int >	ImageCoords
	ImageCoords class is a vector of ints.
typedef TwoDArray< MVector >	MvArray
	MvArray is a two-D array of MVectors.
typedef TwoDArray< MotionVector< float > >	MvFloatArray
	An array of float-based motion vectors for doing global motion calcs.
typedef std::vector< std::vector< MVector > >	CandidateList
Enumerations
enum	PredMode
	Prediction modes for blocks.
enum	CompSort
	Types of picture component.
enum	AddOrSub
	Addition or subtraction.
enum	Direction
	Forward or backward.
enum	WltFilter
	Currently only Daubechies (DAUB) implemented.
enum	CtxAliases
	Contexts used for coefficient coding.
enum	MvCtxAliases
	Contexts used for MV data coding.
Functions
template<class T>
std::ostream &	operator<< (std::ostream &stream, TwoDArray< T > &array)
	A function for extracting array data.
template<class T>
std::istream &	operator>> (std::istream &stream, TwoDArray< T > &array)
	A function for inserting array data.
std::ostream &	operator<< (std::ostream &stream, OLBParams &params)
std::istream &	operator>> (std::istream &stream, OLBParams &params)
ValueType	BChk (const ValueType &num, const ValueType &max)
	A simple bounds checking function, very useful in a number of places.
void	dirac_assert (const char *p_fname, int line_number, const char *p_mess)
void	dirac_report (const char *p_fname, int line_number, const char *p_mess)
void	UnsignedGolombCode (BasicOutputManager &bitman, const unsigned int val)
	Code a value using unsigned exp-Golomb coding and output it.
void	UnsignedGolombCode (std::vector< bool > &bitvec, const unsigned int val)
	Code a value using unsigned exp-Golomb coding and output it to a vector.
void	GolombCode (BasicOutputManager &bitman, const int val)
	Code a value using signed exp-Golomb coding and output it.
void	GolombCode (vector< bool > &bitvec, const int val)
unsigned int	UnsignedGolombDecode (BitInputManager &bitman)
	Decode a value using unsigned exp-Golomb decoding and output it.
unsigned int	UnsignedGolombDecode (const std::vector< bool > &bitvec)
	Decode a value using unsigned exp-Golomb decoding and output it.
int	GolombDecode (BitInputManager &bitman)
	Decode a value using signed exp-Golomb decoding and output it.
int	GolombDecode (const vector< bool > &bitvec)
void	GolombCode (std::vector< bool > &bitvec, const int val)
	Code a value using signed exp-Golomb coding and output it to a vector.
int	GolombDecode (const std::vector< bool > &bitvec)
	Decode a value using signed exp-Golomb decoding and output it.
ostream &	operator<< (ostream &stream, MvCostData &cost)
	Overloaded operator<< for MvCostData.
istream &	operator>> (istream &stream, MvCostData &cost)
	Overloaded operator>> for MvCostData.
istream &	operator>> (istream &stream, PredMode &mode)
	Overloaded operator>> for PredMode.
istream &	operator>> (istream &stream, MEData &me_data)
ostream &	operator<< (ostream &stream, MEData &me_data)
template<class T>
std::ostream &	operator<< (std::ostream &stream, MotionVector< T > &mv)
	Overloaded operator<< for MotionVector class for output to stream.
template<class T>
std::istream &	operator>> (std::istream &stream, MotionVector< T > &mv)
	Overloaded operator>> for MotionVector class for input from stream.
MVector	MvMedian (const MVector &mv1, const MVector &mv2, const MVector &mv3)
	Return the median of three motion vectors.
MVector	MvMedian (const std::vector< MVector > &vect_list)
	Return the median of a set of motion vectors.
MVector	MvMean (MVector &mv1, MVector &mv2)
	Return the mean of two motion vectors.
int	Norm2 (const MVector &mv)
	Return the squared length of a motion vector.
int	Norm1 (const MVector &mv)
	Return the sum of the lengths of a motion vector's componets.
int	GetMean (std::vector< int > &values)
	Return the mean of a set of integer values.
unsigned int	GetMean (std::vector< unsigned int > &values)
	Return the mean of a set of unsigned integer values.
ValueType	GetVar (const MVector &mv1, const MVector &mv2)
	Get the (absolute) variation between two motion vectors.
ValueType	GetVar (const std::vector< MVector > &pred_list, const MVector &mv)
	Get the (absolute) variation between a motion vector and a list of motion vectors.
void	AddNewVlist (CandidateList &vect_list, const MVector &mv, const int xr, const int yr, const int step)
	Add a new motion vector list to the set of lists for sub-pixel matching.
void	AddNewVlist (CandidateList &vect_list, const MVector &mv, const int xr, const int yr)
	Add a new motion vector list of neighbours of a vector to the set of lists.
void	AddNewVlistD (CandidateList &vect_list, const MVector &mv, const int xr, const int yr)
	Add a new motion vector list of diagnonal neighbours of a vector to the set of lists.
void	AddVect (CandidateList &vect_list, const MVector &mv, const int list_num)
	Add a motion vector to the set of motion vector lists.
Variables
const unsigned int	START_CODE_PREFIX = 0x42424344
	Prefix for all start codes.
const unsigned int	START_CODE_PREFIX_BYTE0
const unsigned int	START_CODE_PREFIX_BYTE1
const unsigned int	START_CODE_PREFIX_BYTE2
const unsigned int	START_CODE_PREFIX_BYTE3
const unsigned char	RAP_START_CODE = 0xD7
	Random Access Point (RAP) Intra Frame start Code.
const unsigned char	IFRAME_START_CODE = 0xD6
	Non-RAP Intra Frame start code.
const unsigned char	L1FRAME_START_CODE = 0xD4
	L1 Frame start code.
const unsigned char	L2FRAME_START_CODE = 0xD5
	L2 Frame start code.
const unsigned char	SEQ_END_CODE = 0xD0
	Sequence end code.
const unsigned char	NOT_START_CODE = 0xFF
	Not a start code but part of data.
const unsigned char	BITSTREAM_VERSION = 0x02
	Bitstream version.

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Function Documentation

void dirac::AddVect (  CandidateList &  vect_list, const MVector &  mv, const int  list_num )

Add a motion vector to the set of motion vector lists. Add a motion vector to the set of motion vector lists, making sure it's not a duplicate. Definition at line 192 of file block_match.cpp. References AddVect(), dirac::MotionVector< T >::x, and dirac::MotionVector< T >::y. Referenced by AddNewVlist(), AddNewVlistD(), and AddVect().

void dirac::dirac_assert (  const char *  p_fname, int  line_number, const char *  p_mess )

Print a message to standard error and abort if in debug mode Definition at line 47 of file dirac_assertions.cpp. References dirac_report().

void dirac::dirac_report (  const char *  p_fname, int  line_number, const char *  p_mess )

Print a message to standard error Definition at line 54 of file dirac_assertions.cpp. Referenced by dirac_assert().

ValueType dirac::GetVar (  const std::vector< MVector > &  pred_list, const MVector &  mv )

Get the (absolute) variation between a motion vector and a list of motion vectors. Return the variation between a motion vector and a list of motion vectos, computed as the sum of absolute differences between the components of the vector and the median vector produced by the list of vectors Definition at line 57 of file block_match.cpp. References Norm1(), dirac::MotionVector< T >::x, and dirac::MotionVector< T >::y.

ValueType dirac::GetVar (  const MVector &  mv1, const MVector &  mv2 )

Get the (absolute) variation between two motion vectors. Return the variation between two motion vectors, computed as the sum of absolute differences of their components. Definition at line 48 of file block_match.cpp. References Norm1(), dirac::MotionVector< T >::x, and dirac::MotionVector< T >::y. Referenced by dirac::BlockMatcher::FindBestMatch(), and dirac::BlockMatcher::FindBestMatchSubp().

ostream& dirac::operator<< (  ostream &  stream, MvCostData &  cost )

Overloaded operator<< for MvCostData. Only writes SAD value to stream Definition at line 371 of file motion.cpp. References dirac::MvCostData::mvcost, and dirac::MvCostData::SAD.

istream& dirac::operator>> (  istream &  stream, PredMode &  mode )

Overloaded operator>> for PredMode. No operator<< is specified as enumeration is written as integers operator>> required to specify PredMode input Definition at line 394 of file motion.cpp.

istream& dirac::operator>> (  istream &  stream, MvCostData &  cost )

Overloaded operator>> for MvCostData. Only reads SAD value from stream Definition at line 382 of file motion.cpp. References dirac::MvCostData::mvcost, and dirac::MvCostData::SAD.

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