rosbag::BZ2Stream Class Reference

#include <stream.h>

Inheritance diagram for rosbag::BZ2Stream:

Public Member Functions
	BZ2Stream (ChunkedFile *file)
void	decompress (uint8_t *dest, unsigned int dest_len, uint8_t *source, unsigned int source_len)
CompressionType	getCompressionType () const
void	read (void *ptr, size_t size)
void	startRead ()
void	startWrite ()
void	stopRead ()
void	stopWrite ()
void	write (void *ptr, size_t size)
Public Member Functions inherited from rosbag::Stream
	Stream (ChunkedFile *file)
virtual	~Stream ()

Private Attributes
int	block_size_100k_
	compression block size (1-9; 9 default). 9 is best compression, most memory More...
int	bzerror_
	last error from bzlib More...
BZFILE *	bzfile_
	bzlib compressed file stream More...
int	verbosity_
	level of debugging output (0-4; 0 default). 0 is silent, 4 is max verbose debugging output More...
int	work_factor_
	compression behavior for worst case, highly repetitive data (0-250; 30 default) More...

Additional Inherited Members
Protected Member Functions inherited from rosbag::Stream
void	advanceOffset (uint64_t nbytes)
void	clearUnused ()
uint64_t	getCompressedIn ()
FILE *	getFilePointer ()
char *	getUnused ()
int	getUnusedLength ()
void	setCompressedIn (uint64_t nbytes)
void	setUnused (char *unused)
void	setUnusedLength (int nUnused)
Protected Attributes inherited from rosbag::Stream
ChunkedFile *	file_

Detailed Description

BZ2Stream uses libbzip2 (http://www.bzip.org) for reading/writing compressed data in the BZ2 format.

Definition at line 171 of file stream.h.

Constructor & Destructor Documentation

BZ2Stream()

rosbag::BZ2Stream::BZ2Stream

(

ChunkedFile *

file

)

Definition at line 45 of file bz2_stream.cpp.

Member Function Documentation

decompress()

void rosbag::BZ2Stream::decompress ( uint8_t *  dest, unsigned int  dest_len, uint8_t *  source, unsigned int  source_len  )

virtual

Implements rosbag::Stream.

Definition at line 159 of file bz2_stream.cpp.

getCompressionType()

CompressionType rosbag::BZ2Stream::getCompressionType ( ) const

virtual

Implements rosbag::Stream.

Definition at line 54 of file bz2_stream.cpp.

read()

void rosbag::BZ2Stream::read ( void *  ptr, size_t  size  )

virtual

Implements rosbag::Stream.

Definition at line 117 of file bz2_stream.cpp.

startRead()

void rosbag::BZ2Stream::startRead ( )

virtual

Reimplemented from rosbag::Stream.

Definition at line 103 of file bz2_stream.cpp.

startWrite()

void rosbag::BZ2Stream::startWrite ( )

virtual

Reimplemented from rosbag::Stream.

Definition at line 58 of file bz2_stream.cpp.

stopRead()

void rosbag::BZ2Stream::stopRead ( )

virtual

Reimplemented from rosbag::Stream.

Definition at line 147 of file bz2_stream.cpp.

stopWrite()

void rosbag::BZ2Stream::stopWrite ( )

virtual

Reimplemented from rosbag::Stream.

Definition at line 86 of file bz2_stream.cpp.

write()

void rosbag::BZ2Stream::write ( void *  ptr, size_t  size  )

virtual

Implements rosbag::Stream.

Definition at line 72 of file bz2_stream.cpp.

Member Data Documentation

block_size_100k_

int rosbag::BZ2Stream::block_size_100k_

private

compression block size (1-9; 9 default). 9 is best compression, most memory

Definition at line 190 of file stream.h.

bzerror_

int rosbag::BZ2Stream::bzerror_

private

last error from bzlib

Definition at line 194 of file stream.h.

bzfile_

BZFILE* rosbag::BZ2Stream::bzfile_

private

bzlib compressed file stream

Definition at line 193 of file stream.h.

verbosity_

int rosbag::BZ2Stream::verbosity_

private

level of debugging output (0-4; 0 default). 0 is silent, 4 is max verbose debugging output

Definition at line 189 of file stream.h.

work_factor_

int rosbag::BZ2Stream::work_factor_

private

compression behavior for worst case, highly repetitive data (0-250; 30 default)

Definition at line 191 of file stream.h.

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

• stream.h
• bz2_stream.cpp