Dirac - A Video Codec

Created by the British Broadcasting Corporation.


Public Member Functions | Private Attributes | List of all members
dirac::SubbandByteIO Class Reference

Subband Dirac-bytestream input/output.

#include <subband_byteio.h>

Inheritance diagram for dirac::SubbandByteIO:
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Collaboration diagram for dirac::SubbandByteIO:
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Public Member Functions

 SubbandByteIO (Subband &sub_band, const ByteIO &byteio)
 Constructor. More...
 
 SubbandByteIO (Subband &sub_band)
 
 ~SubbandByteIO ()
 Destructor. More...
 
bool Input ()
 Inputs data from Dirac stream-format. More...
 
int GetBandDataLength () const
 Gets number of bytes in Arith-coded data block. More...
 
const std::string GetBytes ()
 Gets subband bytes in Dirac-bytestream format. More...
 
- Public Member Functions inherited from dirac::ByteIO
 ByteIO (bool new_stream=true)
 Default constructor. More...
 
 ByteIO (const ByteIO &stream_data)
 Constructor. More...
 
virtual ~ByteIO ()
 Destructor. More...
 
virtual void CollateByteStats (DiracByteStats &dirac_byte_stats)
 Gathers byte-stream statistics. More...
 
virtual const std::string GetBytes ()
 Get bytes in Dirac-bytestream format. More...
 
int GetReadBytePosition () const
 Get position of read stream pointer. More...
 
virtual int GetSize () const
 Gets size (in bytes) More...
 
void SetByteParams (const ByteIO &byte_io)
 Copies stream source/destination info. More...
 
void ByteAlignOutput ()
 Sync input for byte-alignment. More...
 
void WriteUint (unsigned int value)
 Ouputs an unsigned integer in interleaved exp Golomb format. More...
 
void SetBitsLeft (int left_bits)
 Sets input size in bits. More...
 
int BitsLeft (void)
 Sets input size in bits. More...
 

Private Attributes

Subbandm_subband
 Sub-band that is inputed/outputed. More...
 
int m_band_data_length
 Number of bytes in arith-coded data block. More...
 

Additional Inherited Members

- 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. More...
 
bool ReadBool ()
 Reads boolean value. More...
 
bool ReadBoolB ()
 Reads boolean value - bounded i/o. More...
 
int ReadBit ()
 Reads next bit. More...
 
int ReadBitB ()
 Reads next bit - bounded i/o. More...
 
unsigned int ReadNBits (int count)
 Reads next 'count' bits. More...
 
void InputBytes (char *data, int count)
 Reads from stream. More...
 
void FlushInputB ()
 Flushes the bounde input. More...
 
int ReadSint ()
 Reads a signed integer in interleaved exp-Golomb format return Signed integer read. More...
 
int ReadSintB ()
 Reads a signed integer in interleaved exp-Golomb format from bounded input return Signed integer read. More...
 
unsigned int ReadUint ()
 Reads an unsigned integer in interleaved exp Golomb format. More...
 
unsigned int ReadUintB ()
 Reads an unsigned integer in interleaved exp Golomb format from bounded input. More...
 
unsigned int ReadUintLit (const int byte_size)
 Reads a fixed length unsigned integer from the stream in big endian. More...
 
unsigned char InputUnByte ()
 Reads a byte from the stream. More...
 
std::string InputUnString (const int count)
 Reads a series of bytes from a stream. More...
 
void WriteBit (const bool &bit)
 Outputs a bit. More...
 
int WriteNBits (unsigned int val)
 Outputs an unsigned integer. More...
 
void WriteNBits (unsigned int val, int count)
 Outputs an n bit integer. More...
 
void OutputBytes (const std::string &bytes)
 Outputs a series of bytes. More...
 
void OutputCurrentByte ()
 Outputs current byte contents. More...
 
void WriteSint (int val)
 Outputs an integer in Golomb signed integer format. More...
 
void WriteUintLit (const unsigned int &value, const int &length)
 Output unsigned int value in big endian format. More...
 
void RemoveRedundantBytes (const int count)
 Removes portion of byte-stream no longer required. More...
 
void SeekGet (const int offset, std::ios_base::seekdir dir)
 
- Protected Attributes inherited from dirac::ByteIO
std::stringstream * mp_stream
 Input/output steam. More...
 

Constructor & Destructor Documentation

◆ SubbandByteIO() [1/2]

dirac::SubbandByteIO::SubbandByteIO ( Subband sub_band,
const ByteIO byteio 
)
Parameters
sub_bandCorresponding Subband
byteioSource/Destination of data

◆ SubbandByteIO() [2/2]

dirac::SubbandByteIO::SubbandByteIO ( Subband sub_band)

◆ ~SubbandByteIO()

dirac::SubbandByteIO::~SubbandByteIO ( )

Member Function Documentation

◆ GetBandDataLength()

int dirac::SubbandByteIO::GetBandDataLength ( ) const

◆ GetBytes()

const std::string dirac::SubbandByteIO::GetBytes ( )
virtual

Reimplemented from dirac::ByteIO.

◆ Input()

bool dirac::SubbandByteIO::Input ( )

Member Data Documentation

◆ m_band_data_length

int dirac::SubbandByteIO::m_band_data_length
private

◆ m_subband

Subband& dirac::SubbandByteIO::m_subband
private

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

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