Dirac - A Video Codec

Created by the British Broadcasting Corporation.


Public Member Functions | Private Member Functions | Private Attributes | Static Private Attributes
dirac::InputStreamBuffer Class Reference

Input Stream Buffer Class.

#include <dirac_cppparser.h>

List of all members.

Public Member Functions

 InputStreamBuffer ()
 Constructor.
 ~InputStreamBuffer ()
 Destructor.
std::ios::pos_type Rewind ()
 Rewind buffer to start of data.
std::ios::pos_type Seek (std::ios::pos_type bytes, std::ios::seekdir pos=std::ios::cur)
 Seek to position specified by bytes offset from pos.
std::ios::pos_type Tell ()
 Return the current read position in the buffer.
void Copy (char *start, int bytes)
 Copy data into buffer.
void PurgeProcessedData ()
 Delete all processed data from buffer.

Private Member Functions

 InputStreamBuffer (const InputStreamBuffer &inbuf)
 Private body-less copy constructor.
InputStreamBufferoperator= (const InputStreamBuffer &inbuf)
 Private body-less assignment operator.

Private Attributes

char * m_chunk_buffer
 Buffere.

Static Private Attributes

static const int m_buffer_size = 1232896
 Buffer size.

Constructor & Destructor Documentation

dirac::InputStreamBuffer::InputStreamBuffer ( )
dirac::InputStreamBuffer::~InputStreamBuffer ( )
dirac::InputStreamBuffer::InputStreamBuffer ( const InputStreamBuffer inbuf)
private

Member Function Documentation

void dirac::InputStreamBuffer::Copy ( char *  start,
int  bytes 
)

Copy take

Parameters:
startmemory area start
bytesnumber of bytes to copy starting from start
InputStreamBuffer& dirac::InputStreamBuffer::operator= ( const InputStreamBuffer inbuf)
private
void dirac::InputStreamBuffer::PurgeProcessedData ( )
std::ios::pos_type dirac::InputStreamBuffer::Rewind ( )
std::ios::pos_type dirac::InputStreamBuffer::Seek ( std::ios::pos_type  bytes,
std::ios::seekdir  pos = std::ios::cur 
)

Seek takes

Parameters:
bytesoffset in bytes
posthe position from which the offset is applied
std::ios::pos_type dirac::InputStreamBuffer::Tell ( )

Member Data Documentation

const int dirac::InputStreamBuffer::m_buffer_size = 1232896
staticprivate
char* dirac::InputStreamBuffer::m_chunk_buffer
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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